youtube.co

youtube.co is SSL secured

Free website and domain report on youtube.co

Last Updated: 26th August, 2024
Overview

Snoop Summary for youtube.co

This is a free and comprehensive report about youtube.co. Our records indicate that youtube.co is privately registered by Google LLC. If youtube.co was to be sold it would possibly be worth $343 USD (based on the daily revenue potential of the website over a 24 month period). Youtube.co is somewhat popular with an estimated 160 daily unique visitors. This report was last updated 26th August, 2024.

About youtube.co

Site Preview: youtube.co youtube.co
Title: YouTube
Description: Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
Keywords and Tags: camera phone, free, media sharing, sharing, streaming media, upload, video, video phone
Related Terms: and youtube, apk4free youtube, dabbe 6 fragman youtube, fx youtube tv, keepvid youtube, pingler youtube, youtube harald baldr, youtube teluguone, youtube to mo3, youtube together
Fav Icon:
Age: Over 14 years old
Domain Created: 25th February, 2010
Domain Updated: 28th January, 2024
Domain Expires: 24th February, 2025
Review

Snoop Score

2/5

Valuation

$343 USD
Note: All valuation figures are estimates.

Popularity

Low
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 7,148,771
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 160
Monthly Visitors: 4,870
Yearly Visitors: 58,400
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $0 USD
Monthly Revenue: $14 USD
Yearly Revenue: $166 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: youtube.co 10
Domain Name: youtube 7
Extension (TLD): co 2
Expiry Check:

Page Speed Analysis

Average Load Time: 3.92 seconds
Load Time Comparison: Faster than 12% of sites

PageSpeed Insights

Avg. (All Categories) 64
Performance 26
Accessibility 93
Best Practices 80
SEO 75
Progressive Web App 45
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.youtube.com/
Updated: 15th April, 2021

1.25 seconds
First Contentful Paint (FCP)
68%
24%
8%

0.01 seconds
First Input Delay (FID)
92%
4%
4%

Simulate loading on desktop
26

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for youtube.co. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.002
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Properly size images — Potential savings of 598 KiB
Images can slow down the page's load time. Youtube.co should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/youtube/img/promos/growth/8be202594c612577448c6645feafd88ab37c2384a08f28b5f4a116386b7c6365_2560x520.jpeg
189615
142211
https://i.ytimg.com/vi/mia9l1kSKgk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDZX0m9E2kFE8PZ53V24rjQlSZ77Q
82680
72468
https://i.ytimg.com/vi/SLgqxChD3TQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCZh8a8n3dbOqiGkjAiT_9TWiEz0Q
70196
61526
https://i.ytimg.com/vi/ILHUOXBxuWc/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDp9tAZEh2ENxy-11USSGerVV_HsQ
67064
58781
https://i.ytimg.com/vi/A9KHmn3d5YM/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBgNbSSiLE-SZLgB50wQkwjIE_sgg
62310
54614
https://i.ytimg.com/vi/tdnC8IPfsJo/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLD-UomHxJCzEfR7sHSUMe7Kqxippg
47156
41332
https://i.ytimg.com/vi/-JAYqHNx5rU/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBki-RtX3O31fQaGL9YAxe_hXwwnQ
42332
37104
https://i.ytimg.com/vi/5qap5aO4i9A/hq720_live.jpg?sqp=COib4YMG-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAA68V0clk9py7IL1qfL14KFlqlNg
38462
33712
https://i.ytimg.com/vi/530z-_yjdlU/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDv8E5cosydQfPZ5u61VPeKLfqjBA
33366
29245
https://i.ytimg.com/vi/LWuBhSZ_Bnk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLC92iyFgYcx2-KmBd_sHfO9m7mb8w
32592
28567
https://i.ytimg.com/vi/XIrc9rn547k/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBB9qvHelEo4d8_p4GVgWvs_HLlGQ
24804
21741
https://i.ytimg.com/vi/YsBe9BFIjBs/hq720_live.jpg?sqp=COib4YMG-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDYwGpC7rsProe_tu3TRmljsSOXNA
17052
14946
https://i.ytimg.com/vi/N5_9eyFqD5E/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBy-6ofvI555tyyLhl0qeQFhjdrMQ
9398
6774
https://www.gstatic.com/youtube/img/promos/growth/51556fbd4554a6875dba647a064d643bc46d1547f43a74c8763dbc92236986e1_640x48.png
6887
5165
https://yt3.ggpht.com/ytc/AAUvwnhcnbIJXBCqU1yGbNGYbWXBraDto7uUxzF0bSlIcw=s68-c-k-c0x00ffffff-no-rj
5961
4290
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Youtube.co should consider lazy-loading offscreen and hidden images.
Minify CSS — Potential savings of 24 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Youtube.co should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
:not(.style-scope)[hidden] { display: none !important; } ...
253812
25032
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Youtube.co should consider minifying JS files.
Remove unused CSS — Potential savings of 281 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Youtube.co should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
:not(.style-scope)[hidden] { display: none !important; } ...
253812
233630
https://www.youtube.com/s/player/82e684c7/www-player-webp.css
54276
54276
Efficiently encode images — Potential savings of 33 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/youtube/img/promos/growth/8be202594c612577448c6645feafd88ab37c2384a08f28b5f4a116386b7c6365_2560x520.jpeg
189615
34164
Serve images in next-gen formats — Potential savings of 120 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/youtube/img/promos/growth/8be202594c612577448c6645feafd88ab37c2384a08f28b5f4a116386b7c6365_2560x520.jpeg
189615
122797
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 580 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.youtube.com/?gl=CO
579.435
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Youtube.co should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

Diagnostics

Avoid chaining critical requests — 16 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Youtube.co should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 29 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
mark_cr_s
Mark
1592.663
mark_cr_c
Mark
2328.745
mark_rsef_dpj
Mark
2377.03
mark_rsae_dpj
Mark
2377.524
mark_js_r
Mark
2377.919
mark_ac
Mark
2378.272
mark_apr
Mark
2378.663
mark_chps
Mark
2378.881
mark_nd
Mark
2432.238
mark_pda
Mark
2488.255
mark_pdc
Mark
2493.97
mark_pdr
Mark
2517.499
mark_chls
Mark
2518.266
mark_lps
Mark
2544.705
mark_hgcr
Mark
3026.612
mark_pdl
Mark
3032.938
mark_nd
Mark
3038.319
mark_pda
Mark
3094.094
mark_bcp
Mark
3097.998
mark_afl
Mark
3130.388
mark_adl
Mark
3130.785
mark_cpt
Mark
4881.066
mark_gcc
Mark
4887.996
mark_dl
Mark
5040.771
mark_gle
Mark
5163.069
mark_gpe
Mark
5192.392
mark_pe
Mark
6084.465
mark_fs
Mark
6169.428
mark_cmi
Mark
6724.179
Keep request counts low and transfer sizes small — 70 requests • 3,194 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
70
3271164
Script
12
1805587
Image
36
802660
Document
2
529992
Stylesheet
8
63814
Font
4
60297
Other
8
8814
Media
0
0
Third-party
51
1350125
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
478084
0
197579
0
66171
0
2966
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
img
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.00097588652482269
0.00032859555745412
0.00011415084681339
0.00010155769289447
1.9702192421528E-5
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 7 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
2392
1021
https://www.youtube.com/s/desktop/1857023c/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
3430
832
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
5532
174
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
4633
139
https://www.youtube.com/s/desktop/1857023c/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
4445
110
https://www.youtube.com/s/player/82e684c7/player_ias.vflset/en_US/base.js
5452
80
https://www.youtube.com/s/desktop/1857023c/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
4369
57
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://youtube.co/
http/1.1
0
31.877000001259
414
0
301
application/binary
https://youtube.co/
http/1.1
32.374000002164
66.945000027772
631
0
301
application/binary
https://www.youtube.com/?gl=CO
h2
67.525999998907
645.96600001096
52938
451756
200
text/html
Document
https://i.ytimg.com/generate_204
h2
660.87400002289
663.41500001727
229
0
204
text/plain
Other
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
h2
661.31700002006
750.68700002157
1207064
7744903
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
h2
663.11100000166
668.86200002045
15754
50631
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/custom-elements-es5-adapter.vflset/custom-elements-es5-adapter.js
h2
663.35200000321
669.26900000544
1303
1920
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/webcomponents-sd.vflset/webcomponents-sd.js
h2
663.90300000785
668.26700000092
21918
73265
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/scheduler.vflset/scheduler.js
h2
669.69900002005
675.60400001821
3131
6726
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/www-i18n-constants-en_US.vflset/www-i18n-constants.js
h2
669.94700001669
675.92800001148
1985
4252
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/www-tampering.vflset/www-tampering.js
h2
670.08900002111
677.84600000596
4075
9693
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/www-prepopulator.vflset/www-prepopulator.js
h2
670.47200002708
676.35600001086
892
588
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/spf.vflset/spf.js
h2
670.60400001355
677.34700001893
13855
38613
200
text/javascript
Script
https://www.youtube.com/s/desktop/1857023c/jsbin/network.vflset/network.js
h2
670.71200002101
675.16300000716
5851
13959
200
text/javascript
Script
https://fonts.googleapis.com/css?family=Roboto:500,300,700,400
h2
671.01200000616
686.86700001126
1451
8172
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=YouTube+Sans:400,500,700
h2
671.645000024
688.79400001606
1379
5549
200
text/css
Stylesheet
https://www.youtube.com/s/desktop/1857023c/cssbin/www-main-desktop-home-page-skeleton.css
h2
671.82200000389
694.81800001813
1298
2848
200
text/css
Stylesheet
https://www.youtube.com/s/desktop/1857023c/cssbin/www-onepick.css
h2
671.99700002675
676.63600001833
839
841
200
text/css
Stylesheet
https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=en
h2
740.90300002717
977.22100000829
477054
0
200
text/html
Document
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
h2
760.3770000278
763.31600002595
11596
11032
200
font/woff2
Font
https://www.youtube.com/s/desktop/1857023c/cssbin/www-main-desktop-watch-page-skeleton.css
h2
761.41100001405
764.64500001748
1527
4910
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Roboto:400,300,300italic,400italic,500,500italic,700,700italic
h2
1475.0130000175
1489.6790000203
1706
16424
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Roboto+Mono:400,700
h2
1476.2610000034
1490.5000000144
1338
4192
200
text/css
Stylesheet
https://googleads.g.doubleclick.net/pagead/id
http/1.1
2118.9400000148
3117.6410000189
1016
0
302
text/html
https://www.youtube.com/youtubei/v1/guide?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8
h2
2492.6870000199
2523.4700000146
3676
28276
200
application/json
Fetch
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
h2
2822.8710000112
2829.9030000053
11612
11048
200
font/woff2
Font
https://www.gstatic.com/youtube/img/promos/growth/8be202594c612577448c6645feafd88ab37c2384a08f28b5f4a116386b7c6365_2560x520.jpeg
h2
3096.0130000021
3103.6050000112
190159
189615
200
image/jpeg
Image
https://fonts.gstatic.com/s/youtubesans/v8/Qw38ZQNGEDjaO2m6tqIqX5E-AVS5_rSejo46_PCTRspJ0OosolrBEJL3HO_T7fHoCVHx.woff2
h2
3101.6390000004
3105.0880000112
25477
24916
200
font/woff2
Font
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
h2
3106.4790000091
3109.9710000271
11612
11048
200
font/woff2
Font
https://googleads.g.doubleclick.net/pagead/id?slf_rd=1
h2
3117.9240000201
3122.4060000095
1319
113
200
application/json
XHR
https://i.ytimg.com/vi/N5_9eyFqD5E/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBy-6ofvI555tyyLhl0qeQFhjdrMQ
h2
4713.9250000182
4720.5000000249
9900
9398
200
image/webp
Image
https://yt3.ggpht.com/ytc/AAUvwnjqIW4pCe8xwjK5ycBWveKr9oGg3oRsRv0cmuNM=s68-c-k-c0x00ffffff-no-rj
h2
4714.1250000277
4717.5660000066
4099
3469
200
image/jpeg
Image
https://i.ytimg.com/vi/5qap5aO4i9A/hq720_live.jpg?sqp=COib4YMG-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAA68V0clk9py7IL1qfL14KFlqlNg
h2
4714.3340000184
4726.1680000229
38984
38462
200
image/webp
Image
https://yt3.ggpht.com/ytc/AAUvwnhGIymQGp3jRMECbTCBSRAUqi8sKbATpWowQG44CA=s68-c-k-c0x00ffffff-no-rj
h2
4714.6219999995
4729.1980000155
4608
3988
200
image/jpeg
Image
https://i.ytimg.com/vi/A9KHmn3d5YM/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBgNbSSiLE-SZLgB50wQkwjIE_sgg
h2
4714.8720000114
4723.2880000083
62821
62310
200
image/webp
Image
https://yt3.ggpht.com/ytc/AAUvwngQN5eSvi5ZUiO9oKsregBsQeQt1yyrSbG00tia=s68-c-k-c0x00ffffff-no-rj
h2
4715.0420000253
4720.759000018
3478
2848
200
image/jpeg
Image
https://i.ytimg.com/vi/mia9l1kSKgk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDZX0m9E2kFE8PZ53V24rjQlSZ77Q
h2
4715.3860000253
4725.5620000069
83182
82680
200
image/webp
Image
https://yt3.ggpht.com/ytc/AAUvwniuE_-JBzDJyrYi6h6VUdcG6lKoKuSMVjbxFtwnQA=s68-c-k-c0x00ffffff-no-rj
h2
4715.5270000221
4719.0080000146
4580
3948
200
image/jpeg
Image
https://www.gstatic.com/youtube/img/promos/growth/51556fbd4554a6875dba647a064d643bc46d1547f43a74c8763dbc92236986e1_640x48.png
h2
4715.801000013
4720.1170000189
7420
6887
200
image/png
Image
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h2
4973.6590000102
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Image
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h2
4973.9110000082
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Image
https://i.ytimg.com/vi/LWuBhSZ_Bnk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLC92iyFgYcx2-KmBd_sHfO9m7mb8w
h2
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h2
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Script
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Stylesheet
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Script
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
677.769
8.423
707.729
9.528
717.871
17.373
752.414
15.425
767.855
12.041
786.039
10.682
1005.164
7.184
1081.252
2041.882
3123.192
18.774
3161.525
1664.741
4826.368
80.766
4913.813
24.569
4947.711
11.072
4958.818
43.427
5009.291
14.291
5042.429
10.048
5055.528
9.479
5080.232
6.83
5087.116
114.035
5201.64
18.829
5220.902
220.544
5446.57
42.137
5489.026
17.805
5507.004
75.037
5611.543
6.151
5618.164
277.78
5895.973
12.026
5917.979
23.239
5946.007
14.175
5961.399
16.571
5978.753
7.008
5989.34
24.301
6014.953
21.473
6036.93
79.752
6138.847
174.141
6314.238
20.359
6337.147
15.203
6356.741
15.963
6385.667
19.193
6405.995
21.8
6429.651
9.686
6440.452
16.054
6457.576
13.81
7015.881
5.832
7021.857
26.287
7059.28
24.878
7084.181
12.615
7097.256
28.602
7126.845
26.127
7153.674
16.242
7170.317
15.142
7185.897
14.92
7207.72
12.254
7225.135
18.772
7243.96
9.483
7255.422
22.918
7278.386
10.466
7289.58
21.592
7311.223
9.307
7322.902
21.232
7344.19
10.45
7354.657
9.237
7364.269
16.275
7388.864
23.912
7438.984
22.474
7464.806
6.583
7471.624
20.396
7494.735
29.777
7524.568
14.17
7573.184
21.544
7594.802
10.824
7605.645
5.955
7638.974
22.453
7661.472
12.995
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Metrics

First Contentful Paint — 1.1 s
The time taken for the first image or text on the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 450 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Youtube.co should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://fonts.googleapis.com/css?family=Roboto:500,300,700,400
1451
230
Remove unused JavaScript — Potential savings of 845 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
1207064
475166
https://www.youtube.com/s/player/82e684c7/player_ias.vflset/en_US/base.js
529128
389727
Avoid multiple page redirects — Potential savings of 340 ms
Redirects can cause additional delays before the page can begin loading. Youtube.co should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://youtube.co/
190
https://youtube.co/
150
https://www.youtube.com/?gl=CO
0
Preload Largest Contentful Paint image — Potential savings of 590 ms
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.gstatic.com/youtube/img/promos/growth/8be202594c612577448c6645feafd88ab37c2384a08f28b5f4a116386b7c6365_2560x520.jpeg
590

Diagnostics

Avoid enormous network payloads — Total size was 3,194 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
1207064
https://www.youtube.com/s/player/82e684c7/player_ias.vflset/en_US/base.js
529128
https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=en
477054
https://www.gstatic.com/youtube/img/promos/growth/8be202594c612577448c6645feafd88ab37c2384a08f28b5f4a116386b7c6365_2560x520.jpeg
190159
https://i.ytimg.com/vi/mia9l1kSKgk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDZX0m9E2kFE8PZ53V24rjQlSZ77Q
83182
https://i.ytimg.com/vi/SLgqxChD3TQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCZh8a8n3dbOqiGkjAiT_9TWiEz0Q
70706
https://i.ytimg.com/vi/ILHUOXBxuWc/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDp9tAZEh2ENxy-11USSGerVV_HsQ
67566
https://i.ytimg.com/vi/A9KHmn3d5YM/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBgNbSSiLE-SZLgB50wQkwjIE_sgg
62821
https://www.youtube.com/s/player/82e684c7/www-player-webp.css
54276
https://www.youtube.com/?gl=CO
52938

Metrics

Speed Index — 4.7 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 4.4 s
The timing of the largest text or image that is painted.
Time to Interactive — 5.6 s
The time taken for the page to become fully interactive.
Total Blocking Time — 2,000 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

First CPU Idle — 5.6 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 1,020 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 3.9 s
The time taken for the primary content of the page to be rendered.
Estimated Input Latency — 150 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive youtube.co as laggy when the latency is higher than 0.05 seconds.

Diagnostics

Serve static assets with an efficient cache policy — 36 resources found
Youtube.co can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://i.ytimg.com/vi/mia9l1kSKgk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDZX0m9E2kFE8PZ53V24rjQlSZ77Q
300000
83182
https://i.ytimg.com/vi/SLgqxChD3TQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCZh8a8n3dbOqiGkjAiT_9TWiEz0Q
300000
70706
https://i.ytimg.com/vi/ILHUOXBxuWc/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDp9tAZEh2ENxy-11USSGerVV_HsQ
300000
67566
https://i.ytimg.com/vi/5qap5aO4i9A/hq720_live.jpg?sqp=COib4YMG-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAA68V0clk9py7IL1qfL14KFlqlNg
300000
38984
https://i.ytimg.com/vi/LWuBhSZ_Bnk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLC92iyFgYcx2-KmBd_sHfO9m7mb8w
300000
33094
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300000
25306
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300000
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https://static.doubleclick.net/instream/ad_status.js
900000
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https://www.gstatic.com/youtube/img/promos/growth/8be202594c612577448c6645feafd88ab37c2384a08f28b5f4a116386b7c6365_2560x520.jpeg
3000000
190159
https://www.gstatic.com/youtube/img/promos/growth/51556fbd4554a6875dba647a064d643bc46d1547f43a74c8763dbc92236986e1_640x48.png
3000000
7420
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7200000
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7200000
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7200000
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7200000
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7200000
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86400000
3619
https://yt3.ggpht.com/ytc/AAUvwngQN5eSvi5ZUiO9oKsregBsQeQt1yyrSbG00tia=s68-c-k-c0x00ffffff-no-rj
86400000
3478
https://yt3.ggpht.com/ytc/AAUvwnjO-pCfZ21QnvSJTuzLdOXJZkRQFairUyIOWiwPyQ=s68-c-k-c0x00ffffff-no-rj
86400000
3070
https://yt3.ggpht.com/ytc/AAUvwnjDwLJeWs_jcgoVvQpC7YZxWMwP-N__UH-98dxGyw=s88-c-k-c0x00ffffff-no-rj
86400000
2688
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86400000
2162
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86400000
2144
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86400000
2031
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86400000
1947
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86400000
1933
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86400000
1915
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86400000
1910
Avoid an excessive DOM size — 6,861 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
6861
Maximum DOM Depth
31
Maximum Child Elements
362
Reduce JavaScript execution time — 5.0 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.youtube.com/s/desktop/1857023c/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
2576.013
2200.88
1.869
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
1682.278
1282.975
157.041
https://www.youtube.com/?gl=CO
914.109
676.754
20.546
https://www.youtube.com/s/desktop/1857023c/jsbin/webcomponents-sd.vflset/webcomponents-sd.js
629.312
531.735
3.137
Unattributable
150.13
7.979
0.156
https://www.youtube.com/s/player/82e684c7/player_ias.vflset/en_US/base.js
80.758
31.034
38.36
Minimize main-thread work — 6.1 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
4745.734
Style & Layout
339.511
Other
245.118
Garbage Collection
230.036
Script Parsing & Compilation
228.395
Parse HTML & CSS
147.752
Rendering
143.93
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
2.9389999981504
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
7.0319999940693
https://fonts.gstatic.com/s/youtubesans/v8/Qw38ZQNGEDjaO2m6tqIqX5E-AVS5_rSejo46_PCTRspJ0OosolrBEJL3HO_T7fHoCVHx.woff2
3.4490000107326
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
3.4920000180136
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://i.ytimg.com/vi/mia9l1kSKgk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDZX0m9E2kFE8PZ53V24rjQlSZ77Q
img
https://i.ytimg.com/vi/SLgqxChD3TQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCZh8a8n3dbOqiGkjAiT_9TWiEz0Q
img
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img
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img
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img
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img
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img
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img
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img
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img
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img
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img
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img
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img
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img
93

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of youtube.co. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Youtube.co may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
CO
img
Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
80

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that youtube.co should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Polymer
3.4.1
Hammer.js
2.0.2
SPF
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://youtube.co/
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Refused to display 'https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=en' in a frame because it set 'X-Frame-Options' to 'deny'.
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.youtube.com/s/player/82e684c7/player_ias.vflset/en_US/base.js
https://www.youtube.com/s/desktop/1857023c/jsbin/desktop_polymer_inlined_html_polymer_flags.vflset/desktop_polymer_inlined_html_polymer_flags.js
https://www.youtube.com/s/desktop/1857023c/jsbin/webcomponents-sd.vflset/webcomponents-sd.js
https://www.youtube.com/s/desktop/1857023c/jsbin/webcomponents-sd.vflset/webcomponents-sd.js.sourcemap
https://www.youtube.com/s/desktop/1857023c/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
https://www.youtube.com/s/desktop/1857023c/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js.map
https://www.youtube.com/s/desktop/1857023c/jsbin/custom-elements-es5-adapter.vflset/custom-elements-es5-adapter.js
https://www.youtube.com/s/desktop/1857023c/jsbin/custom-elements-es5-adapter.vflset/fast-shim.js.sourcemap
75

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for youtube.co. This includes optimizations such as providing meta data.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Mobile Friendly

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.co on mobile screens.

Content Best Practices

Links do not have descriptive text — 2 links found
Make use of descriptive link text to assist search engines in understanding the content.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
45

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of youtube.co. This includes details about web app manifests.

Installable

Web app manifest and service worker meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

PWA Optimized

Registers a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.co on mobile screens.
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 65
Performance 30
Accessibility 89
Best Practices 75
SEO 91
Progressive Web App 42
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://m.youtube.com/
Updated: 15th April, 2021

2.70 seconds
First Contentful Paint (FCP)
4%
77%
19%

0.02 seconds
First Input Delay (FID)
95%
3%
2%

Simulate loading on mobile
30

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for youtube.co. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.017
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Properly size images
Images can slow down the page's load time. Youtube.co should consider serving more appropriate-sized images.
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Youtube.co should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Youtube.co should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Youtube.co should consider minifying JS files.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 560 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://m.youtube.com/?gl=CO
562.391
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Youtube.co should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

Diagnostics

Avoids enormous network payloads — Total size was 1,298 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://accounts.google.com/ServiceLogin?ltmpl=mobile&service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fm.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Dm%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dmobile_passive%26noapp%3D1&hl=en
476957
https://m.youtube.com/s/player/82e684c7/player-plasma-ias-phone-en_US.vflset/base.js
323509
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
216032
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/exm=BVqNwc,HVzIQc,QSDTCc,YioVgd,a9Yyqc,aDST8c,c3_base,hhhf3b,ieWmpc,ohwWsb,tSmD1b/ed=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=ERsVff
58540
https://m.youtube.com/s/player/82e684c7/mobile-polymer-player-svg-ias-mweb-2x.css
56816
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.jWK2IYMpPWI.L.W.O/d=0/ct=zgms/rs=ABnK5FLGmfZ0-qX7WN1Sg_C-Ed-1Qq8jXg
36818
https://i.ytimg.com/vi/RG9TMn1FJzc/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCmpuMp57ew0t_Rs82jRo4O-4kQXw
36795
https://i.ytimg.com/vi/u3b7FCe9IGA/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCtkM04apcI_o3rq7iMS8Cjlq0Dbw
34001
https://m.youtube.com/?gl=CO
27440
https://i.ytimg.com/vi_webp/5OBV3mFBPLM/hqdefault.webp
17459
Avoids an excessive DOM size — 351 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
351
Maximum DOM Depth
20
Maximum Child Elements
21
Avoid chaining critical requests — 6 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Youtube.co should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 4 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
mark_pdc
Mark
811.398
mark_pdr
Mark
815.515
mark_pe
Mark
942.104
mark_fs
Mark
1112.901
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 21 requests • 1,298 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
21
1329222
Script
5
602141
Document
2
504397
Image
5
95088
Stylesheet
2
93634
Font
2
29936
Other
5
4026
Media
0
0
Third-party
13
605988
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
476957
0
29936
0
2962
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
img
Avoid large layout shifts — 1 element found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
img
0.016726684570313
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 7 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
10641
415
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
6720
388
https://m.youtube.com/s/player/82e684c7/player-plasma-ias-phone-en_US.vflset/base.js
10470
171
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
7112
99
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
7251
93
https://m.youtube.com/s/player/82e684c7/mobile-polymer-player-svg-ias-mweb-2x.css
4320
57
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
7344
51
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Image elements have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://youtube.co/
http/1.1
0
31.186999985948
414
0
301
application/binary
https://youtube.co/
http/1.1
31.899999943562
73.31999996677
631
0
301
application/binary
https://www.youtube.com/?gl=CO
http/1.1
74.008999974467
95.574999926612
650
0
302
application/binary
https://m.youtube.com/?gl=CO
h2
96.157999942079
657.55200001877
27440
125759
200
text/html
Document
https://m.youtube.com/static/r/e6a7424a/fetch_polyfill.vflset/fetch_polyfill.js
h2
673.29499998596
679.52699994203
3429
8543
200
text/javascript
Script
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
h2
673.44599997159
691.31299993023
216032
665022
200
text/javascript
Script
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.jWK2IYMpPWI.L.W.O/d=0/ct=zgms/rs=ABnK5FLGmfZ0-qX7WN1Sg_C-Ed-1Qq8jXg
h2
673.74899995048
697.26199994329
36818
254681
200
text/css
Stylesheet
https://m.youtube.com/s/player/82e684c7/player-plasma-ias-phone-en_US.vflset/base.js
h2
680.02600001637
710.08099999744
323509
928605
200
text/javascript
Script
https://m.youtube.com/s/player/82e684c7/mobile-polymer-player-svg-ias-mweb-2x.css
h2
680.59699994046
704.99100000598
56816
378673
200
text/css
Stylesheet
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf
h2
689.86299994867
693.92099999823
14961
20864
200
font/ttf
Font
https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf
h2
690.11800002772
694.30400000419
14975
20860
200
font/ttf
Font
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/exm=BVqNwc,HVzIQc,QSDTCc,YioVgd,a9Yyqc,aDST8c,c3_base,hhhf3b,ieWmpc,ohwWsb,tSmD1b/ed=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=ERsVff
h2
795.36500002723
806.5119999228
58540
205755
200
text/javascript
Script
https://accounts.google.com/ServiceLogin?ltmpl=mobile&service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fm.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Dm%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dmobile_passive%26noapp%3D1&hl=en
h2
810.81299996004
1069.5409999462
476957
0
200
text/html
Document
https://i.ytimg.com/vi_webp/5OBV3mFBPLM/hqdefault.webp
h2
962.06499997061
968.81300001405
17459
16936
200
image/webp
Image
https://yt3.ggpht.com/ytc/AAUvwng3pHVCaeoju9Lw00uXq4E_6-2QneL2TvPVjk50=s68-c-k-c0x00ffffff-no-rj
h2
962.44000003207
972.87499997765
5298
4671
200
image/jpeg
Image
https://i.ytimg.com/vi/RG9TMn1FJzc/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCmpuMp57ew0t_Rs82jRo4O-4kQXw
h2
962.5979999546
969.30699993391
36795
36284
200
image/webp
Image
https://yt3.ggpht.com/ytc/AAUvwnh2oU-aSU5guJeRuBjF64NJb0KRuQEGu1DMLKGbfA=s68-c-k-c0x00ffffff-no-rj
h2
962.75800000876
967.19599992502
1535
905
200
image/jpeg
Image
https://i.ytimg.com/vi/u3b7FCe9IGA/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCtkM04apcI_o3rq7iMS8Cjlq0Dbw
h2
962.91599993128
970.21800000221
34001
33498
200
image/webp
Image
https://googleads.g.doubleclick.net/pagead/id
http/1.1
982.01499995776
1022.2020000219
1014
0
302
text/html
https://googleads.g.doubleclick.net/pagead/id?slf_rd=1
h2
1022.5109999301
1029.3560000136
1317
113
200
application/json
XHR
https://static.doubleclick.net/instream/ad_status.js
h2
1161.2650000025
1166.5789999533
631
29
200
text/javascript
Script
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
690.327
8.309
702.388
7.743
720.139
6.377
739.097
14.212
755.803
5.246
772.592
97.106
872.956
49.677
923.173
9.28
932.693
42.666
975.446
6.122
982.297
5.141
987.965
5.998
994.773
8.432
1008.27
19.916
1028.338
23.323
1053.296
9.296
1074.633
8.326
1083.82
7.647
1100.343
103.692
1219.387
12.685
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Metrics

Speed Index — 5.8 s
The time taken for the page contents to be visibly populated.

Opportunities

Remove unused CSS — Potential savings of 90 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Youtube.co should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://m.youtube.com/s/player/82e684c7/mobile-polymer-player-svg-ias-mweb-2x.css
56816
56763
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.jWK2IYMpPWI.L.W.O/d=0/ct=zgms/rs=ABnK5FLGmfZ0-qX7WN1Sg_C-Ed-1Qq8jXg
36818
35093

Diagnostics

Serve static assets with an efficient cache policy — 6 resources found
Youtube.co can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://static.doubleclick.net/instream/ad_status.js
900000
631
https://i.ytimg.com/vi/RG9TMn1FJzc/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCmpuMp57ew0t_Rs82jRo4O-4kQXw
7200000
36795
https://i.ytimg.com/vi/u3b7FCe9IGA/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCtkM04apcI_o3rq7iMS8Cjlq0Dbw
7200000
34001
https://i.ytimg.com/vi_webp/5OBV3mFBPLM/hqdefault.webp
7200000
17459
https://yt3.ggpht.com/ytc/AAUvwng3pHVCaeoju9Lw00uXq4E_6-2QneL2TvPVjk50=s68-c-k-c0x00ffffff-no-rj
86400000
5298
https://yt3.ggpht.com/ytc/AAUvwnh2oU-aSU5guJeRuBjF64NJb0KRuQEGu1DMLKGbfA=s68-c-k-c0x00ffffff-no-rj
86400000
1535
Reduce JavaScript execution time — 1.5 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
1036.684
724.856
64.676
https://m.youtube.com/?gl=CO
718.38
493.536
26.804
https://m.youtube.com/s/player/82e684c7/player-plasma-ias-phone-en_US.vflset/base.js
192.564
88.34
85.292
Unattributable
128.168
5.988
0.84
https://m.youtube.com/s/player/82e684c7/mobile-polymer-player-svg-ias-mweb-2x.css
56.848
0
0
Minimize main-thread work — 2.2 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1331.72
Other
345.092
Script Parsing & Compilation
205.752
Style & Layout
136.236
Parse HTML & CSS
116.312
Rendering
51.772

Metrics

First Contentful Paint — 5.5 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 9.2 s
The timing of the largest text or image that is painted.
Time to Interactive — 10.6 s
The time taken for the page to become fully interactive.
Total Blocking Time — 670 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

First CPU Idle — 10.2 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 420 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 5.5 s
The time taken for the primary content of the page to be rendered.
Estimated Input Latency — 140 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive youtube.co as laggy when the latency is higher than 0.05 seconds.
First Contentful Paint (3G) — 10708 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 810 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Youtube.co should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.jWK2IYMpPWI.L.W.O/d=0/ct=zgms/rs=ABnK5FLGmfZ0-qX7WN1Sg_C-Ed-1Qq8jXg
36818
450
Remove unused JavaScript — Potential savings of 400 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://m.youtube.com/s/player/82e684c7/player-plasma-ias-phone-en_US.vflset/base.js
323509
226192
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
216032
136658
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/exm=BVqNwc,HVzIQc,QSDTCc,YioVgd,a9Yyqc,aDST8c,c3_base,hhhf3b,ieWmpc,ohwWsb,tSmD1b/ed=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=ERsVff
58540
47116
Avoid multiple page redirects — Potential savings of 1,890 ms
Redirects can cause additional delays before the page can begin loading. Youtube.co should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://youtube.co/
630
https://youtube.co/
480
https://www.youtube.com/?gl=CO
780
https://m.youtube.com/?gl=CO
0
Preload Largest Contentful Paint image — Potential savings of 930 ms
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://i.ytimg.com/vi_webp/5OBV3mFBPLM/hqdefault.webp
930

Diagnostics

Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
89

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of youtube.co. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Youtube.co may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-hidden="true"]` elements contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
Failing Elements
a
a
a
a
a

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that youtube.co should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://youtube.co/
Allowed

Audits

Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
https://i.ytimg.com/vi_webp/5OBV3mFBPLM/hqdefault.webp
360 x 270
480 x 360
720 x 540
https://yt3.ggpht.com/ytc/AAUvwng3pHVCaeoju9Lw00uXq4E_6-2QneL2TvPVjk50=s68-c-k-c0x00ffffff-no-rj
40 x 40
68 x 68
80 x 80
https://yt3.ggpht.com/ytc/AAUvwnh2oU-aSU5guJeRuBjF64NJb0KRuQEGu1DMLKGbfA=s68-c-k-c0x00ffffff-no-rj
40 x 40
68 x 68
80 x 80
Fonts with `font-display: optional` are not preloaded
It is recommended that optional fonts are preloaded.
URL
https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf
https://fonts.gstatic.com/s/roboto/v18/KFOjCnqEu92Fr1Mu51S7ACc6CsHYl4BO.ttf
https://fonts.gstatic.com/s/roboto/v18/KFOkCnqEu92Fr1Mu51xIIzcXKMny.ttf

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Refused to display 'https://accounts.google.com/ServiceLogin?ltmpl=mobile&service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fm.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Dm%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dmobile_passive%26noapp%3D1&hl=en' in a frame because it set 'X-Frame-Options' to 'deny'.
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://m.youtube.com/s/player/82e684c7/player-plasma-ias-phone-en_US.vflset/base.js
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.OyCAqX1uHoQ.O/d=1/ct=zgms/rs=ABnK5FJnQ3iqeNMBIPkbS4NAFXziOvUupw/m=c3_base,aDST8c,tSmD1b,a9Yyqc,ohwWsb,HVzIQc,QSDTCc,BVqNwc,hhhf3b,YioVgd,ieWmpc
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for youtube.co. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.co on mobile screens.
Document uses legible font sizes — 98.45% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
ytm-pivot-bar-renderer
1.55%
11px
98.45%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 90% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
40x40
40x40

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
42

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of youtube.co. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.co on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 172.217.222.91
Continent:
Country:
Region:
City:
Longitude:
Latitude:
Currencies:
Languages:

Web Hosting Provider

Name IP Address
Google LLC
Registration

Domain Registrant

Private Registration: Yes
Name: REDACTED FOR PRIVACY
Organization: Google LLC
Country: US
City: REDACTED FOR PRIVACY
State: CA
Post Code: REDACTED FOR PRIVACY
Email:
Phone: REDACTED FOR PRIVACY
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
.CO Internet, S.A.S. 172.64.148.104
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Unknown
WOT Rating: 3.3/5 (4 reviews)
WOT Trustworthiness: 66/100
WOT Child Safety: 87/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: misc-sni.youtube.com
Issued By: WR2
Valid From: 30th July, 2024
Valid To: 22nd October, 2024
Subject: CN = misc-sni.youtube.com
Hash: 271c88f0
Issuer: CN = WR2
O = Google Trust Services
S = US
Version: 2
Serial Number: 0xEB0F86482C7B4B3D0AEC018E5A652F66
Serial Number (Hex): EB0F86482C7B4B3D0AEC018E5A652F66
Valid From: 30th July, 2024
Valid To: 22nd October, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:DE:1B:1E:ED:79:15:D4:3E:37:24:C3:21:BB:EC:34:39:6D:42:B2:30
Extended Key Usage: TLS Web Server Authentication
CRL Distribution Points:
Full Name:
URI:http://c.pki.goog/wr2/GSyT1N4PBrg.crl

Certificate Policies: Policy: 2.23.140.1.2.1

Authority Information Access: OCSP - URI:http://o.pki.goog/wr2
CA Issuers - URI:http://i.pki.goog/wr2.crt

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
Timestamp : Jul 30 13:45:56.978 2024 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:77:DE:A9:AD:9F:C3:A8:B4:DD:A8:09:E0:
71:71:E0:F7:C2:19:6D:41:04:F1:66:8B:9B:61:23:22:
F0:03:77:2D:02:20:3A:7C:EB:A9:39:7D:CA:DE:90:45:
83:EB:86:8F:40:3E:61:98:B4:58:9B:DE:DB:42:2B:21:
50:70:F1:E8:EC:E6
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
Timestamp : Jul 30 13:45:55.927 2024 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:EA:76:59:37:76:20:76:AA:D5:60:67:
51:0B:D9:89:03:93:05:86:D2:B7:0E:B7:7B:06:54:22:
E8:8B:39:AA:C5:02:20:3A:C7:2D:DB:DF:DF:AD:DD:B8:
1C:5E:1B:6C:18:3D:F0:33:2C:FC:1B:91:7B:69:6A:60:
C9:B6:08:4D:02:97:B3
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:*.youtube.ae
DNS:*.youtube.al
DNS:*.youtube.am
DNS:*.youtube.at
DNS:*.youtube.az
DNS:*.youtube.ba
DNS:*.youtube.be
DNS:*.youtube.bg
DNS:*.youtube.bh
DNS:*.youtube.bo
DNS:*.youtube.by
DNS:*.youtube.ca
DNS:*.youtube.cat
DNS:*.youtube.ch
DNS:*.youtube.cl
DNS:*.youtube.co
DNS:*.youtube.co.ae
DNS:*.youtube.co.at
DNS:*.youtube.co.cr
DNS:*.youtube.co.hu
DNS:*.youtube.co.id
DNS:*.youtube.co.il
DNS:*.youtube.co.in
DNS:*.youtube.co.jp
DNS:*.youtube.co.ke
DNS:*.youtube.co.kr
DNS:*.youtube.co.ma
DNS:*.youtube.co.nz
DNS:*.youtube.co.th
DNS:*.youtube.co.tz
DNS:*.youtube.co.ug
DNS:*.youtube.co.uk
DNS:*.youtube.co.ve
DNS:*.youtube.co.za
DNS:*.youtube.co.zw
DNS:*.youtube.com
DNS:*.youtube.com.ar
DNS:*.youtube.com.au
DNS:*.youtube.com.az
DNS:*.youtube.com.bd
DNS:*.youtube.com.bh
DNS:*.youtube.com.bo
DNS:*.youtube.com.br
DNS:*.youtube.com.by
DNS:*.youtube.com.co
DNS:*.youtube.com.cy
DNS:*.youtube.com.do
DNS:*.youtube.com.ec
DNS:*.youtube.com.ee
DNS:*.youtube.com.eg
DNS:*.youtube.com.es
DNS:*.youtube.com.gh
DNS:*.youtube.com.gr
DNS:*.youtube.com.gt
DNS:*.youtube.com.hk
DNS:*.youtube.com.hn
DNS:*.youtube.com.hr
DNS:*.youtube.com.jm
DNS:*.youtube.com.jo
DNS:*.youtube.com.kh
DNS:*.youtube.com.kw
DNS:*.youtube.com.lb
DNS:*.youtube.com.lv
DNS:*.youtube.com.ly
DNS:*.youtube.com.mk
DNS:*.youtube.com.mt
DNS:*.youtube.com.mx
DNS:*.youtube.com.my
DNS:*.youtube.com.ng
DNS:*.youtube.com.ni
DNS:*.youtube.com.om
DNS:*.youtube.com.pa
DNS:*.youtube.com.pe
DNS:*.youtube.com.ph
DNS:*.youtube.com.pk
DNS:*.youtube.com.pt
DNS:*.youtube.com.py
DNS:*.youtube.com.qa
DNS:*.youtube.com.ro
DNS:*.youtube.com.sa
DNS:*.youtube.com.sg
DNS:*.youtube.com.sv
DNS:*.youtube.com.tn
DNS:*.youtube.com.tr
DNS:*.youtube.com.tw
DNS:*.youtube.com.ua
DNS:*.youtube.com.uy
DNS:*.youtube.com.ve
DNS:*.youtube.cr
DNS:*.youtube.cz
DNS:*.youtube.de
DNS:*.youtube.dk
DNS:*.youtube.ee
DNS:*.youtube.es
DNS:*.youtube.fi
DNS:*.youtube.fr
DNS:*.youtube.ge
DNS:*.youtube.gr
DNS:*.youtube.gt
DNS:*.youtube.hk
DNS:*.youtube.hr
DNS:*.youtube.hu
DNS:*.youtube.ie
DNS:*.youtube.in
DNS:*.youtube.iq
DNS:*.youtube.is
DNS:*.youtube.it
DNS:*.youtube.jo
DNS:*.youtube.jp
DNS:*.youtube.kr
DNS:*.youtube.kz
DNS:*.youtube.la
DNS:*.youtube.lk
DNS:*.youtube.lt
DNS:*.youtube.lu
DNS:*.youtube.lv
DNS:*.youtube.ly
DNS:*.youtube.ma
DNS:*.youtube.md
DNS:*.youtube.me
DNS:*.youtube.mk
DNS:*.youtube.mn
DNS:*.youtube.mx
DNS:*.youtube.my
DNS:*.youtube.ng
DNS:*.youtube.ni
DNS:*.youtube.nl
DNS:*.youtube.no
DNS:*.youtube.pa
DNS:*.youtube.pe
DNS:*.youtube.ph
DNS:*.youtube.pk
DNS:*.youtube.pl
DNS:*.youtube.pr
DNS:*.youtube.pt
DNS:*.youtube.qa
DNS:*.youtube.ro
DNS:*.youtube.rs
DNS:*.youtube.ru
DNS:*.youtube.sa
DNS:*.youtube.se
DNS:*.youtube.sg
DNS:*.youtube.si
DNS:*.youtube.sk
DNS:*.youtube.sn
DNS:*.youtube.soy
DNS:*.youtube.sv
DNS:*.youtube.tn
DNS:*.youtube.tv
DNS:*.youtube.ua
DNS:*.youtube.ug
DNS:*.youtube.uy
DNS:*.youtube.vn
DNS:*.youtubego.co.id
DNS:*.youtubego.co.in
DNS:*.youtubego.com
DNS:*.youtubego.com.br
DNS:*.youtubego.id
DNS:*.youtubego.in
DNS:youtube.ae
DNS:youtube.al
DNS:youtube.am
DNS:youtube.at
DNS:youtube.az
DNS:youtube.ba
DNS:youtube.be
DNS:youtube.bg
DNS:youtube.bh
DNS:youtube.bo
DNS:youtube.by
DNS:youtube.ca
DNS:youtube.cat
DNS:youtube.ch
DNS:youtube.cl
DNS:youtube.co
DNS:youtube.co.ae
DNS:youtube.co.at
DNS:youtube.co.cr
DNS:youtube.co.hu
DNS:youtube.co.id
DNS:youtube.co.il
DNS:youtube.co.in
DNS:youtube.co.jp
DNS:youtube.co.ke
DNS:youtube.co.kr
DNS:youtube.co.ma
DNS:youtube.co.nz
DNS:youtube.co.th
DNS:youtube.co.tz
DNS:youtube.co.ug
DNS:youtube.co.uk
DNS:youtube.co.ve
DNS:youtube.co.za
DNS:youtube.co.zw
DNS:youtube.com
DNS:youtube.com.ar
DNS:youtube.com.au
DNS:youtube.com.az
DNS:youtube.com.bd
DNS:youtube.com.bh
DNS:youtube.com.bo
DNS:youtube.com.br
DNS:youtube.com.by
DNS:youtube.com.co
DNS:youtube.com.cy
DNS:youtube.com.do
DNS:youtube.com.ec
DNS:youtube.com.ee
DNS:youtube.com.eg
DNS:youtube.com.es
DNS:youtube.com.gh
DNS:youtube.com.gr
DNS:youtube.com.gt
DNS:youtube.com.hk
DNS:youtube.com.hn
DNS:youtube.com.hr
DNS:youtube.com.jm
DNS:youtube.com.jo
DNS:youtube.com.kh
DNS:youtube.com.kw
DNS:youtube.com.lb
DNS:youtube.com.lv
DNS:youtube.com.ly
DNS:youtube.com.mk
DNS:youtube.com.mt
DNS:youtube.com.mx
DNS:youtube.com.my
DNS:youtube.com.ng
DNS:youtube.com.ni
DNS:youtube.com.om
DNS:youtube.com.pa
DNS:youtube.com.pe
DNS:youtube.com.ph
DNS:youtube.com.pk
DNS:youtube.com.pt
DNS:youtube.com.py
DNS:youtube.com.qa
DNS:youtube.com.ro
DNS:youtube.com.sa
DNS:youtube.com.sg
DNS:youtube.com.sv
DNS:youtube.com.tn
DNS:youtube.com.tr
DNS:youtube.com.tw
DNS:youtube.com.ua
DNS:youtube.com.uy
DNS:youtube.com.ve
DNS:youtube.cr
DNS:youtube.cz
DNS:youtube.de
DNS:youtube.dk
DNS:youtube.ee
DNS:youtube.es
DNS:youtube.fi
DNS:youtube.fr
DNS:youtube.ge
DNS:youtube.gr
DNS:youtube.gt
DNS:youtube.hk
DNS:youtube.hr
DNS:youtube.hu
DNS:youtube.ie
DNS:youtube.in
DNS:youtube.iq
DNS:youtube.is
DNS:youtube.it
DNS:youtube.jo
DNS:youtube.jp
DNS:youtube.kr
DNS:youtube.kz
DNS:youtube.la
DNS:youtube.lk
DNS:youtube.lt
DNS:youtube.lu
DNS:youtube.lv
DNS:youtube.ly
DNS:youtube.ma
DNS:youtube.md
DNS:youtube.me
DNS:youtube.mk
DNS:youtube.mn
DNS:youtube.mx
DNS:youtube.my
DNS:youtube.ng
DNS:youtube.ni
DNS:youtube.nl
DNS:youtube.no
DNS:youtube.pa
DNS:youtube.pe
DNS:youtube.ph
DNS:youtube.pk
DNS:youtube.pl
DNS:youtube.pr
DNS:youtube.pt
DNS:youtube.qa
DNS:youtube.ro
DNS:youtube.rs
DNS:youtube.ru
DNS:youtube.sa
DNS:youtube.se
DNS:youtube.sg
DNS:youtube.si
DNS:youtube.sk
DNS:youtube.sn
DNS:youtube.soy
DNS:youtube.sv
DNS:youtube.tn
DNS:youtube.tv
DNS:youtube.ua
DNS:youtube.ug
DNS:youtube.uy
DNS:youtube.vn
DNS:youtubego.co.id
DNS:youtubego.co.in
DNS:youtubego.com
DNS:youtubego.com.br
DNS:youtubego.id
DNS:youtubego.in
DNS:misc-sni.youtube.com
Technical

DNS Lookup

A Records

Host IP Address Class TTL
youtube.co. 64.233.181.190 IN 300
youtube.co. 64.233.181.136 IN 300
youtube.co. 64.233.181.91 IN 300
youtube.co. 64.233.181.93 IN 300

NS Records

Host Nameserver Class TTL
youtube.co. ns2.google.com. IN 21600
youtube.co. ns4.google.com. IN 21600
youtube.co. ns3.google.com. IN 21600
youtube.co. ns1.google.com. IN 21600

AAAA Records

IP Address Class TTL
2607:f8b0:4001:c09::5d IN 300
2607:f8b0:4001:c09::88 IN 300
2607:f8b0:4001:c09::be IN 300
2607:f8b0:4001:c09::5b IN 300

CAA Records

Domain Flags Tag Class TTL
pki.goog 0 issue IN 21600

MX Records

Priority Host Server Class TTL
0 youtube.co. smtp.google.com. IN 300

SOA Records

Domain Name Primary NS Responsible Email TTL
youtube.co. ns1.google.com. dns-admin.google.com. 60

TXT Records

Host Value Class TTL
youtube.co. v=spf1 IN 300

HTTP Response Headers

HTTP-Code: HTTP/2 301
content-type: application/binary
cache-control: no-cache, no-store, max-age=0, must-revalidate
expires: 1st January, 1990
date: 26th August, 2024
server: ESF
x-content-type-options: nosniff
pragma: no-cache
location: https://www.youtube.com/?gl=CO
content-length: 0
x-frame-options: SAMEORIGIN
accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
vary: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
permissions-policy: ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-wow64=*, ch-ua-form-factors=*, ch-ua-platform=*, ch-ua-platform-version=*
cross-origin-opener-policy-report-only: same-origin; report-to="youtube_reporting_fallback"
report-to: {"group":"youtube_reporting_fallback","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/youtube_reporting_fallback"}]}
x-xss-protection: 0
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

Whois Lookup

Created: 25th February, 2010
Changed: 28th January, 2024
Expires: 24th February, 2025
Registrar: MarkMonitor, Inc.
Status: clientDeleteProhibited
clientUpdateProhibited
clientTransferProhibited
Nameservers: ns1.google.com
ns2.google.com
ns3.google.com
ns4.google.com
Owner Name: REDACTED FOR PRIVACY
Owner Organization: Google LLC
Owner Street: REDACTED FOR PRIVACY
REDACTED FOR PRIVACY
REDACTED FOR PRIVACY
Owner Post Code: REDACTED FOR PRIVACY
Owner City: REDACTED FOR PRIVACY
Owner State: CA
Owner Country: US
Owner Phone: REDACTED FOR PRIVACY
Owner Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
REDACTED FOR PRIVACY
REDACTED FOR PRIVACY
Admin Post Code: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
REDACTED FOR PRIVACY
REDACTED FOR PRIVACY
Tech Post Code: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Full Whois: Domain Name: youtube.co
Registry Domain ID: D658880-CO
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: www.markmonitor.com
Updated Date: 2024-01-28T10:03:47Z
Creation Date: 2010-02-25T01:33:18Z
Registry Expiry Date: 2025-02-24T23:59:59Z
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: registry.admin@markmonitor.com
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Google LLC
Registrant Street: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: CA
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1.google.com
Name Server: ns2.google.com
Name Server: ns3.google.com
Name Server: ns4.google.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-08-26T15:21:35Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

The above WHOIS results have been redacted to remove potential personal data. The full WHOIS output may be available to individuals and organisations with a legitimate interest in accessing this data not outweighed by the fundamental privacy rights of the data subject. To find out more, or to make a request for access, please visit: RDDSrequest.nic.co.

.CO Internet, S.A.S., the Administrator for .CO, has collected this information for the WHOIS database through Accredited Registrars. This information is provided to you for informational purposes only and is designed to assist persons in determining contents of a domain name registration record in the .CO Internet registry database. .CO Internet makes this information available to you "as is" and does not guarantee its accuracy.

By submitting a WHOIS query, you agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data: (1) to allow, enable, or otherwise support the transmission of mass unsolicited, commercial advertising or solicitations via direct mail, electronic mail, or by telephone; (2) in contravention of any applicable data and privacy protection laws; or (3) to enable high volume, automated, electronic processes that apply to the registry (or its systems). Compilation, repackaging, dissemination, or other use of the WHOIS database in its entirety, or of a substantial portion thereof, is not allowed without .CO Internet's prior written permission. .CO Internet reserves the right to modify or change these conditions at any time without prior or subsequent notification of any kind. By executing this query, in any manner whatsoever, you agree to abide by these terms. In some limited cases, domains that might appear as available in whois might not actually be available as they could be already registered and the whois not yet updated and/or they could be part of the Restricted list. In this cases, performing a check through your Registrar's (EPP check) will give you the actual status of the domain. Additionally, domains currently or previously used as extensions in 3rd level domains will not be available for registration in the 2nd level. For example, org.co, mil.co, edu.co, com.co, net.co, nom.co, arts.co, firm.co, info.co, int.co, web.co, rec.co, co.co.

NOTE: FAILURE TO LOCATE A RECORD IN THE WHOIS DATABASE IS NOT INDICATIVE OF THE AVAILABILITY OF A DOMAIN NAME. All domain names are subject to certain additional domain name registration rules. For details, please visit our site at www.cointernet.co <http://www.cointernet.co>.

Nameservers

Name IP Address
ns1.google.com 216.239.32.10
ns2.google.com 216.239.34.10
ns3.google.com 216.239.36.10
ns4.google.com 216.239.38.10
Related

Subdomains

Domain Subdomain
m

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