Websites Powered by core-js
17,184,936 websites tracked using core-js (JavaScript libraries) · github.com
core-js is a JavaScript library used to add functionality to web pages. Its official site is github.com. PoweredBy tracks the websites that use core-js 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
2M
4M
6M
Aug 2021
Nov 2022
Mar 2024
Jun 2025
Sep 2026
Domains observed using core-js in each month's HTTP Archive crawl,
Aug 2021 to Sep 2026 · peak 5,779,339 in Oct 2024. 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 5,227,795 core-js sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
1,295,217
India
433,567
Brazil
406,300
United Kingdom
402,603
Germany
384,505
France
315,055
Italy
302,259
Canada
295,823
Sites using core-js by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Retail | 69.87% | 210,511 |
| Industrial and manufacturing | 64.18% | 2,784 |
| Automotive | 61.72% | 42,860 |
| Pets and animals | 57.41% | 1,585 |
| Government | 54.88% | 4,411 |
| Finance and insurance | 54.83% | 9,095 |
| Home and construction | 53.17% | 25,300 |
| Arts and entertainment | 52.50% | 21,672 |
| Beauty and wellness | 51.23% | 13,186 |
| Real estate | 51.22% | 36,325 |
| Education | 49.71% | 24,773 |
| Travel and hospitality | 48.44% | 36,007 |
Share of each industry's websites with a detected stack that use core-js; industries come from what sites declare in their own structured data.
Top sites by authority
9+
65% · 243 of 372 sites
8+
66% · 5,073 of 7,677 sites
7+
57% · 25,858 of 45,712 sites
6+
51% · 56,024 of 110,136 sites
5+
43% · 106,806 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running core-js in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using core-js
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 2701 | isc2.org | 8.30/10 | 59,000 | 20,996 | Sep 2021 |
| 2702 | wyndhamhotels.com | 8.30/10 | 2,395,600 | 241,854 | Sep 2021 |
| 2703 | brill.com | 8.30/10 | 74,700 | 60,318 | Aug 2021 |
| 2704 | fairwork.gov.au | 8.30/10 | 32,100 | 33,890 | Mar 2024 |
| 2705 | aaas.org | 8.30/10 | 89,200 | 21,174 | Sep 2021 |
| 2706 | medicinenet.com | 8.30/10 | 1,679,400 | 1,054,414 | Oct 2021 |
| 2707 | thediplomat.com | 8.30/10 | 85,200 | 44,355 | Sep 2021 |
| 2708 | thueringen.de | 8.30/10 | 82 | 184 | Sep 2021 |
| 2709 | familysearch.org | 8.30/10 | 1,516,200 | 304,931 | Sep 2021 |
| 2710 | theweek.com | 8.30/10 | 533,600 | 225,967 | Aug 2021 |
| 2711 | macmillan.com | 8.30/10 | 1,800 | 90 | Nov 2021 |
| 2712 | parents.com | 8.30/10 | 1,160,100 | 344,555 | Sep 2021 |
| 2713 | uni-trier.de | 8.30/10 | 750 | 748 | Sep 2022 |
| 2714 | birmingham.ac.uk | 8.30/10 | 39,700 | 31,245 | Sep 2021 |
| 2715 | ncoa.org | 8.30/10 | 776,800 | 126,867 | Sep 2021 |
| 2716 | exeter.ac.uk | 8.30/10 | 19,000 | 11,669 | Sep 2021 |
| 2717 | psychologicalscience.org | 8.30/10 | 51,800 | 21,131 | Aug 2021 |
| 2718 | ebu.ch | 8.30/10 | 5,200 | 1,888 | Sep 2021 |
| 2719 | interia.pl | 8.30/10 | 890 | 193 | Aug 2021 |
| 2720 | estranky.cz | 8.30/10 | 21 | 1 | Sep 2021 |
| 2721 | okstate.edu | 8.30/10 | - | - | Aug 2021 |
| 2722 | carleton.ca | 8.30/10 | 49,300 | 20,005 | Aug 2021 |
| 2723 | up.pt | 8.30/10 | 2,100 | 1,076 | Aug 2021 |
| 2724 | dal.ca | 8.30/10 | 26,100 | 12,945 | Sep 2021 |
| 2725 | naturvardsverket.se | 8.30/10 | 550 | 756 | Aug 2025 |
| 2726 | berliner-zeitung.de | 8.30/10 | 8,200 | 2,726 | Aug 2021 |
| 2727 | rp.pl | 8.30/10 | 1,600 | 3,558 | Aug 2021 |
| 2728 | maastrichtuniversity.nl | 8.30/10 | 7,600 | 7,522 | Sep 2021 |
| 2729 | livepocket.jp | 8.30/10 | 5 | 25 | Jul 2022 |
| 2730 | dailytelegraph.com.au | 8.30/10 | 22,800 | 46,585 | Sep 2021 |
| 2731 | justpaste.it | 8.30/10 | 5,100 | 5,816 | Sep 2021 |
| 2732 | hokudai.ac.jp | 8.30/10 | 390 | 19 | Sep 2021 |
| 2733 | cac.gov.cn | 8.29/10 | 31 | 21 | Jul 2025 |
| 2734 | gabia.io | 8.29/10 | - | - | Aug 2022 |
| 2735 | typesquare.com | 8.29/10 | 54 | 18 | Sep 2021 |
| 2736 | goto.com | 8.29/10 | 97,100 | 17,423 | Sep 2021 |
| 2737 | rstudio.com | 8.29/10 | 1 | 2 | Sep 2021 |
| 2738 | themeansar.com | 8.29/10 | 23 | 27 | Sep 2021 |
| 2739 | accessnow.org | 8.29/10 | 5,400 | 1,067 | Sep 2021 |
| 2740 | nttdata.com | 8.29/10 | 8,000 | 8,505 | Aug 2021 |
| 2741 | algolia.com | 8.29/10 | 18,000 | 742 | Sep 2021 |
| 2742 | service-now.com | 8.29/10 | - | - | Oct 2021 |
| 2743 | ucoz.ru | 8.29/10 | 5 | 13 | Aug 2021 |
| 2744 | acer.com | 8.29/10 | 221,100 | 40,376 | Sep 2021 |
| 2745 | what3words.com | 8.29/10 | 6,900 | 11,412 | Sep 2021 |
| 2746 | cdp.net | 8.29/10 | 18,000 | 16,010 | Aug 2021 |
| 2747 | arm.com | 8.29/10 | 171,800 | 8,174 | Sep 2021 |
| 2748 | ebi.ac.uk | 8.29/10 | 113,500 | 32,727 | Aug 2022 |
| 2749 | charlotteobserver.com | 8.29/10 | 252,100 | 159,754 | Sep 2021 |
| 2750 | militarytimes.com | 8.29/10 | 106,200 | 46,590 | Sep 2021 |
| 2751 | udc.es | 8.29/10 | 280 | 628 | Aug 2021 |
| 2752 | crn.com | 8.29/10 | 48,200 | 34,604 | Aug 2021 |
| 2753 | nv.ua | 8.29/10 | 390 | 559 | Sep 2021 |
| 2754 | univ-tours.fr | 8.29/10 | 140 | 358 | Aug 2021 |
| 2755 | macworld.com | 8.29/10 | 170,600 | 173,152 | Sep 2021 |
| 2756 | jta.org | 8.29/10 | 57,600 | 41,926 | Sep 2021 |
| 2757 | gigaom.com | 8.29/10 | 81 | 89 | Sep 2021 |
| 2758 | todoist.com | 8.29/10 | 121,700 | 18,852 | Sep 2021 |
| 2759 | cardiff.ac.uk | 8.29/10 | 22,900 | 8,882 | Sep 2021 |
| 2760 | marvel.com | 8.29/10 | 3,841,500 | 210,049 | Aug 2021 |
| 2761 | jdpower.com | 8.29/10 | 2,390,700 | 812,205 | Sep 2021 |
| 2762 | saarland.de | 8.29/10 | 230 | 275 | Sep 2021 |
| 2763 | afp.com | 8.29/10 | 13,000 | 3,772 | Sep 2021 |
| 2764 | nifty.com | 8.29/10 | 14 | 15 | Sep 2021 |
| 2765 | london.gov.uk | 8.29/10 | 36,900 | 17,157 | Aug 2021 |
| 2766 | rei.com | 8.29/10 | 3,090,800 | 610,507 | Sep 2021 |
| 2767 | telstra.com.au | 8.29/10 | 25,000 | 34,226 | Sep 2021 |
| 2768 | study.com | 8.29/10 | 8,800,400 | 2,896,548 | Mar 2022 |
| 2769 | cuhk.edu.hk | 8.29/10 | 5,100 | 1,878 | Aug 2021 |
| 2770 | indiewire.com | 8.29/10 | 710,000 | 270,243 | Oct 2021 |
| 2771 | haufe.de | 8.29/10 | 140 | 870 | Sep 2021 |
| 2772 | autismspeaks.org | 8.29/10 | 293,800 | 46,272 | Aug 2021 |
| 2773 | dtic.mil | 8.29/10 | - | - | May 2024 |
| 2774 | ncl.ac.uk | 8.29/10 | 50,900 | 15,860 | Sep 2021 |
| 2775 | nm.gov | 8.29/10 | 34,700 | 4,741 | Dec 2021 |
| 2776 | habitat.org | 8.29/10 | 915,100 | 159,429 | Sep 2021 |
| 2777 | indigo.ca | 8.29/10 | 95,300 | 213,680 | Sep 2021 |
| 2778 | aaos.org | 8.29/10 | 22,400 | 10,389 | Sep 2021 |
| 2779 | wikileaks.org | 8.29/10 | 10,800 | 4,701 | Feb 2025 |
| 2780 | mountsinai.org | 8.29/10 | 1,726,500 | 490,648 | Sep 2021 |
| 2781 | kudyznudy.cz | 8.29/10 | 1,900 | 2,889 | Sep 2021 |
| 2782 | nhm.ac.uk | 8.29/10 | 1,827,300 | 156,874 | Apr 2024 |
| 2783 | decrypt.co | 8.29/10 | 29,300 | 30,589 | Sep 2021 |
| 2784 | splcenter.org | 8.29/10 | 242,700 | 28,429 | Sep 2021 |
| 2785 | concordia.ca | 8.29/10 | 44,000 | 27,103 | Sep 2021 |
| 2786 | rpi.edu | 8.29/10 | 48,000 | 5,727 | Sep 2021 |
| 2787 | spektrum.de | 8.29/10 | 1,300 | 2,143 | Sep 2021 |
| 2788 | baylor.edu | 8.29/10 | 93,700 | 12,314 | Sep 2021 |
| 2789 | cervantes.es | 8.29/10 | 1,000 | 630 | Aug 2021 |
| 2790 | telerama.fr | 8.29/10 | 9,500 | 11,428 | Sep 2021 |
| 2791 | shopinfo.jp | 8.29/10 | - | - | Aug 2021 |
| 2792 | safernet.org.br | 8.28/10 | 2 | 1 | Sep 2021 |
| 2793 | worldanimalprotection.org | 8.28/10 | 76,100 | 7,474 | Sep 2021 |
| 2794 | pstatic.net | 8.28/10 | - | - | Sep 2021 |
| 2795 | bynder.com | 8.28/10 | 9,600 | 3,147 | Jan 2022 |
| 2796 | zend.com | 8.28/10 | 2,700 | 1,350 | Sep 2021 |
| 2797 | imore.com | 8.28/10 | 86,300 | 164,605 | Sep 2021 |
| 2798 | consentmo.com | 8.28/10 | 140 | 252 | Mar 2024 |
| 2799 | aif.ru | 8.28/10 | 420 | 234 | Aug 2021 |
| 2800 | audioboom.com | 8.28/10 | 35,300 | 27,214 | Sep 2021 |
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) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).
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