Websites Powered by Closure Library
85,649 websites tracked using Closure Library (JavaScript libraries) · github.com
Closure Library is a JavaScript library used to add functionality to web pages. Its official site is github.com. PoweredBy tracks the websites that use Closure Library across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the javascript libraries ecosystem.
Usage trend
10K
20K
30K
40K
Oct 2023
Jun 2024
Feb 2025
Oct 2025
Jun 2026
Domains observed using Closure Library in each month's HTTP Archive crawl,
Oct 2023 to Jun 2026 · peak 38,216 in Nov 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 2 s
INP 75 ms
CLS 0
TTFB 800 ms
Median site among 33,245 Closure Library sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
8,763
India
6,090
Brazil
3,852
Japan
3,759
United Kingdom
3,315
Indonesia
3,249
Spain
3,071
France
3,031
Sites using Closure Library by audience country, Chrome UX Report.
Top sites by authority
9+
6% · 23 of 372 sites
8+
3% · 211 of 7,677 sites
7+
1% · 584 of 45,712 sites
6+
<1% · 876 of 110,136 sites
5+
<1% · 1,331 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Closure Library in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Closure Library
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | google.com | 10.00/10 | 36,640,600 | 1,601,732 | Oct 2023 |
| 2 | github.io | 9.43/10 | 1,800 | 1 | Oct 2023 |
| 3 | blogspot.com | 9.39/10 | - | - | Oct 2023 |
| 4 | google.de | 9.33/10 | 2,500 | 1,057 | Oct 2023 |
| 5 | weebly.com | 9.24/10 | 162,400 | 11,089 | Oct 2023 |
| 6 | harvard.edu | 9.24/10 | 472,900 | 13,570 | Jan 2026 |
| 7 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Oct 2023 |
| 8 | google.co.jp | 9.18/10 | 2,600 | 418 | Oct 2023 |
| 9 | mit.edu | 9.18/10 | 161,200 | 27,360 | Oct 2023 |
| 10 | pages.dev | 9.14/10 | - | - | Feb 2025 |
| 11 | hbr.org | 9.14/10 | 605,200 | 217,833 | Oct 2023 |
| 12 | berkeley.edu | 9.10/10 | 166,900 | 5,412 | Oct 2023 |
| 13 | google.fr | 9.07/10 | 7,300 | 539 | Oct 2023 |
| 14 | vercel.app | 9.05/10 | - | - | May 2024 |
| 15 | free.fr | 9.05/10 | 3,400 | 1,262 | Oct 2023 |
| 16 | columbia.edu | 9.02/10 | 770,900 | 41,349 | May 2026 |
| 17 | netlify.app | 9.01/10 | 2 | 2 | Oct 2023 |
| 18 | google.nl | 9.01/10 | 310 | 116 | Oct 2023 |
| 19 | google.es | 9.01/10 | 2,500 | 1,269 | Oct 2023 |
| 20 | umich.edu | 9.01/10 | 36,500 | 1,974 | Oct 2023 |
| 21 | uk.com | 9.00/10 | 2 | 12 | Oct 2023 |
| 22 | google.co.uk | 9.00/10 | 78,200 | 2,239 | Oct 2023 |
| 23 | upenn.edu | 9.00/10 | 179,200 | 5,457 | Mar 2026 |
| 24 | netflix.com | 8.99/10 | 68,358,200 | 3,834,938 | Oct 2023 |
| 25 | google.it | 8.99/10 | 2,000 | 348 | Oct 2023 |
| 26 | cmu.edu | 8.97/10 | 436,800 | 81,774 | Oct 2023 |
| 27 | wisc.edu | 8.97/10 | 461,400 | 7,361 | Oct 2023 |
| 28 | google.ca | 8.96/10 | 7,500 | 2,795 | Oct 2023 |
| 29 | washington.edu | 8.96/10 | 668,000 | 107,419 | Jan 2026 |
| 30 | umn.edu | 8.96/10 | 78 | 49 | Oct 2023 |
| 31 | web.dev | 8.95/10 | 137,400 | 33,763 | Oct 2023 |
| 32 | sakura.ne.jp | 8.95/10 | - | - | Oct 2023 |
| 33 | jhu.edu | 8.93/10 | 177,400 | 6,915 | Jun 2026 |
| 34 | withgoogle.com | 8.91/10 | - | - | Oct 2023 |
| 35 | us.com | 8.86/10 | 32 | 9 | Oct 2023 |
| 36 | google.pl | 8.86/10 | 120 | 290 | Oct 2023 |
| 37 | purdue.edu | 8.86/10 | 744,800 | 169,159 | Oct 2023 |
| 38 | politico.eu | 8.85/10 | 177,300 | 83,364 | Oct 2023 |
| 39 | umd.edu | 8.85/10 | 253,300 | 15,690 | Feb 2026 |
| 40 | google.com.au | 8.85/10 | 2,400 | 776 | Oct 2023 |
| 41 | google.ch | 8.85/10 | 1,600 | 70 | Oct 2023 |
| 42 | livejournal.com | 8.84/10 | 7,200 | 712 | Oct 2023 |
| 43 | ucsd.edu | 8.84/10 | 48,100 | 2,389 | Oct 2023 |
| 44 | ubc.ca | 8.84/10 | 14,500 | 2,813 | Feb 2026 |
| 45 | ucdavis.edu | 8.83/10 | 383,600 | 93,475 | Oct 2023 |
| 46 | it.com | 8.81/10 | - | - | Jul 2025 |
| 47 | google.co.in | 8.81/10 | 4,600 | 2,496 | Oct 2023 |
| 48 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | Apr 2026 |
| 49 | fc2.com | 8.80/10 | 5,100 | 10 | Oct 2023 |
| 50 | utah.gov | 8.80/10 | 129,900 | 27,432 | Jan 2026 |
| 51 | google.com.br | 8.79/10 | 98,400 | 1,398 | Oct 2023 |
| 52 | google.cz | 8.78/10 | 55 | 29 | Oct 2023 |
| 53 | georgetown.edu | 8.78/10 | 138,100 | 27,817 | Oct 2023 |
| 54 | chromium.org | 8.77/10 | 66,400 | 12,752 | Oct 2023 |
| 55 | gouv.qc.ca | 8.77/10 | - | - | Jan 2026 |
| 56 | web.app | 8.76/10 | - | - | Oct 2023 |
| 57 | uci.edu | 8.76/10 | 94,700 | 9,859 | Oct 2023 |
| 58 | google.se | 8.76/10 | 140 | 65 | Oct 2023 |
| 59 | google.at | 8.73/10 | 9 | 90 | Oct 2023 |
| 60 | brown.edu | 8.73/10 | 377,100 | 26,065 | Oct 2023 |
| 61 | ucsb.edu | 8.71/10 | 73,800 | 11,445 | Oct 2023 |
| 62 | u-tokyo.ac.jp | 8.71/10 | 25,200 | 7,795 | Oct 2023 |
| 63 | mcgill.ca | 8.70/10 | 403,000 | 145,097 | Apr 2026 |
| 64 | in.net | 8.69/10 | - | - | Oct 2023 |
| 65 | lbl.gov | 8.69/10 | 59,100 | 2,456 | Oct 2023 |
| 66 | google.com.sg | 8.68/10 | 1,700 | 215 | Oct 2023 |
| 67 | ky.gov | 8.68/10 | - | 1 | Oct 2023 |
| 68 | xsrv.jp | 8.68/10 | - | - | May 2024 |
| 69 | tbs.co.jp | 8.67/10 | 2,400 | 731 | May 2026 |
| 70 | unicode.org | 8.66/10 | 36,100 | 12,566 | Oct 2023 |
| 71 | altervista.org | 8.66/10 | - | - | Oct 2023 |
| 72 | caltech.edu | 8.65/10 | 148,700 | 22,852 | Jan 2026 |
| 73 | uga.edu | 8.65/10 | 234,400 | 2,908 | Mar 2026 |
| 74 | usp.br | 8.65/10 | 1 | 19 | Oct 2023 |
| 75 | gitlab.io | 8.64/10 | - | - | Nov 2023 |
| 76 | google.be | 8.64/10 | 6 | 30 | Oct 2023 |
| 77 | iowa.gov | 8.64/10 | 68,900 | 16,059 | Oct 2023 |
| 78 | google.co.id | 8.63/10 | 790 | 189 | Oct 2023 |
| 79 | psychiatry.org | 8.62/10 | 568,800 | 121,127 | Dec 2023 |
| 80 | com.de | 8.62/10 | 5 | 14 | Oct 2023 |
| 81 | google.com.tw | 8.61/10 | 2 | 17 | Oct 2023 |
| 82 | google.com.tr | 8.58/10 | 110 | 281 | Oct 2023 |
| 83 | eater.com | 8.58/10 | 421,800 | 151,518 | Jun 2024 |
| 84 | unam.mx | 8.58/10 | 1,900 | 1,196 | Oct 2023 |
| 85 | neocities.org | 8.57/10 | 23,000 | 6,887 | Oct 2023 |
| 86 | byu.edu | 8.57/10 | 71,300 | 7,371 | Oct 2023 |
| 87 | kyoto-u.ac.jp | 8.57/10 | 4,800 | 3,548 | Oct 2023 |
| 88 | ucsc.edu | 8.56/10 | 72,800 | 11,866 | Oct 2023 |
| 89 | rice.edu | 8.56/10 | 256,200 | 13,279 | Oct 2023 |
| 90 | cuni.cz | 8.56/10 | 4,400 | 1,637 | Oct 2023 |
| 91 | google.dk | 8.55/10 | 1,600 | 21 | Oct 2023 |
| 92 | socialmediatoday.com | 8.54/10 | 28,300 | 41,285 | Oct 2023 |
| 93 | europapress.es | 8.54/10 | 9,400 | 23,833 | Nov 2025 |
| 94 | ucr.edu | 8.53/10 | 112,800 | 12,297 | Mar 2026 |
| 95 | ga.gov | 8.53/10 | - | - | Oct 2023 |
| 96 | jp.net | 8.52/10 | 66 | 7 | Oct 2025 |
| 97 | itv.com | 8.52/10 | 235,900 | 148,784 | Oct 2023 |
| 98 | upm.es | 8.52/10 | 2,100 | 1,692 | Jan 2026 |
| 99 | keio.ac.jp | 8.52/10 | 9,400 | 1,068 | Oct 2023 |
| 100 | google.ru | 8.51/10 | 480 | 67 | Oct 2023 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
Compare Closure Library
- Closure Library vs jQuery
- Closure Library vs core-js
- Closure Library vs jQuery Migrate
- Closure Library vs jQuery UI
- Closure Library vs Swiper