Websites Powered by Closure Library

89,791 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

Domains observed using Closure Library in each month's HTTP Archive crawl, Oct 2023 to Aug 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 33,038 Closure Library sites with Chrome UX data, p75 values, Aug 2026.

Top countries

United States 7,960
India 5,352
Brazil 3,394
Japan 3,337
United Kingdom 2,866
Indonesia 2,765
Spain 2,660
France 2,590

Sites using Closure Library by audience country, Chrome UX Report.

Top sites by authority

9+ 6% · 21 of 372 sites
8+ 3% · 202 of 7,677 sites
7+ 1% · 553 of 45,712 sites
6+ <1% · 828 of 110,136 sites
5+ <1% · 1,259 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

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
601 uniceub.br 6.82/10 71 68 Oct 2023
602 marssociety.org 6.81/10 11,400 534 Oct 2023
603 imtlucca.it 6.81/10 24 61 Oct 2023
604 enewstoday.co.kr 6.80/10 14 30 Oct 2023
605 rttnews.com 6.80/10 75,700 79,231 Oct 2023
606 alligator.org 6.80/10 70,600 34,469 Oct 2023
607 ifsc.edu.br 6.80/10 420 577 Oct 2023
608 tmu.edu.tw 6.79/10 7 8 Jan 2026
609 observer-reporter.com 6.79/10 19,700 17,477 Dec 2023
610 innpoland.pl 6.79/10 150 355 Jul 2026
611 mynet.co.il 6.78/10 30 3 Nov 2023
612 f5.si 6.77/10 - - Jan 2026
613 infopedia.pt 6.77/10 12,200 45,678 Oct 2023
614 ufrpe.br 6.77/10 250 201 Jan 2026
615 one.pl 6.77/10 - - Feb 2026
616 xooit.fr 6.77/10 - - Sep 2024
617 pikist.com 6.76/10 - - Apr 2026
618 retrogames.cz 6.76/10 167,400 32,737 Oct 2023
619 techau.com.au 6.74/10 1,700 3,156 Feb 2024
620 patspulpit.com 6.74/10 56,300 25,511 Dec 2024
621 protv.ro 6.74/10 640 983 Oct 2023
622 dges.gov.pt 6.74/10 560 670 Jan 2026
623 indiawest.com 6.73/10 4,000 4,417 Oct 2023
624 opindia.com 6.73/10 3,300 8,708 Oct 2023
625 lmaga.jp 6.73/10 28 44 Dec 2023
626 lgfl.net 6.72/10 840 419 Oct 2023
627 rinkworks.com 6.72/10 5,600 930 Oct 2023
628 umich.mx 6.72/10 280 364 Oct 2023
629 edu.hu 6.71/10 - - Oct 2023
630 afterdawn.com 6.71/10 2,400 4,400 Oct 2023
631 sca.org 6.71/10 36,700 1,460 Oct 2023
632 thelec.kr 6.71/10 22 48 Oct 2023
633 gazzetta.gr 6.71/10 940 695 Jan 2025
634 it-chiba.ac.jp 6.71/10 - - Oct 2023
635 redmondpie.com 6.70/10 11,900 24,753 Jan 2026
636 dongguk.edu 6.70/10 1,300 119 Oct 2023
637 uin-suka.ac.id 6.70/10 34 32 Nov 2023
638 hankyu-hanshin-dept.co.jp 6.70/10 - - Jul 2026
639 intpolicydigest.org 6.70/10 5,500 4,506 Jun 2024
640 pharmavoice.com 6.69/10 4,000 3,611 Oct 2023
641 velvet.jp 6.69/10 - - Jan 2026
642 fmach.it 6.68/10 9 5 Oct 2023
643 minam.gob.pe 6.68/10 650 992 Nov 2023
644 iq.com 6.67/10 81,900 50,346 Oct 2023
645 vark-learn.com 6.67/10 5,300 2,043 Aug 2026
646 alsde.edu 6.67/10 - - Jan 2026
647 newvisions.org 6.67/10 11,500 3,480 Oct 2023
648 legaldive.com 6.66/10 1,600 1,838 Oct 2023
649 kh.edu.tw 6.66/10 - - Oct 2023
650 unibl.org 6.66/10 28 21 Jul 2026
651 evangnet.cz 6.65/10 - - Mar 2025
652 nibb.ac.jp 6.65/10 44 137 May 2026
653 iiserpune.ac.in 6.64/10 620 1,237 Oct 2023
654 uowm.gr 6.63/10 37 30 Jan 2026
655 socialnews.xyz 6.62/10 14,900 15,597 Jun 2026
656 marinebio.org 6.62/10 88,200 16,065 Feb 2025
657 aceshowbiz.com 6.62/10 156,600 63,731 Nov 2023
658 es.net 6.61/10 450 225 Jun 2026
659 environment.gov.za 6.61/10 - - Jan 2026
660 tc.edu.tw 6.61/10 - 2 Oct 2023
661 erienewsnow.com 6.60/10 34,900 30,831 Feb 2026
662 arrowheadpride.com 6.60/10 66,100 19,148 Nov 2024
663 ncba.org 6.59/10 10,100 4,326 May 2025
664 ncnu.edu.tw 6.59/10 46 36 Oct 2023
665 twinklemagazine.nl 6.59/10 72 60 Oct 2023
666 ifce.edu.br 6.59/10 2 23 Jan 2026
667 sciencecodex.com 6.58/10 350 346 May 2024
668 mauinews.com 6.58/10 12,100 12,511 Oct 2023
669 boox.com 6.57/10 17,400 956 Oct 2023
670 flcgil.it 6.57/10 47 96 Oct 2023
671 bleedinggreennation.com 6.57/10 80,400 24,349 Jan 2025
672 vanguardia.com 6.56/10 1,800 6,214 Apr 2024
673 unite.it 6.56/10 4,100 465 Jul 2026
674 tku.ac.jp 6.56/10 64 80 Oct 2023
675 uwc.org 6.55/10 4,300 2,588 Mar 2026
676 iiitd.ac.in 6.54/10 480 369 Oct 2023
677 educatorstechnology.com 6.53/10 10,500 7,000 Oct 2023
678 gunadarma.ac.id 6.53/10 4 15 Oct 2023
679 prideofdetroit.com 6.53/10 97,400 27,837 Nov 2024
680 codeassist.google 6.52/10 4,400 5,034 Mar 2025
681 frm.org.br 6.52/10 20 36 Oct 2023
682 petra.ac.id 6.52/10 340 21 Oct 2023
683 op.gg 6.51/10 492,200 129,938 Oct 2023
684 ninersnation.com 6.51/10 42,500 15,121 Nov 2024
685 wamiz.com 6.50/10 120 364 Nov 2024
686 techfunnel.com 6.50/10 2,200 2,484 Nov 2024
687 core.edu.au 6.50/10 62 37 Oct 2023
688 disclose.tv 6.50/10 170 3 Jul 2025
689 vindy.com 6.49/10 42,000 29,765 Oct 2023
690 unt.edu.ar 6.49/10 180 185 Oct 2023
691 bukkyo-u.ac.jp 6.49/10 2 3 Jan 2026
692 pdn.ac.lk 6.48/10 36 259 Oct 2023
693 thunkable.com 6.48/10 6,800 4,206 Jan 2026
694 nkust.edu.tw 6.48/10 1 7 Oct 2023
695 tsuda.ac.jp 6.48/10 9 17 Oct 2023
696 uvnc.com 6.47/10 4,000 1,268 Oct 2023
697 statenews.com 6.47/10 42,700 15,976 Oct 2023
698 electricaltechnology.org 6.46/10 50,000 29,418 Dec 2023
699 techexplorist.com 6.46/10 8,500 11,184 May 2024
700 aw.ca 6.46/10 - 1 Feb 2026

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) →

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