Websites Powered by core-js

17,184,925 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

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

IndustryShareWebsites
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

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
1 facebook.com 9.96/10 588,436,200 90,318,408 Sep 2021
2 instagram.com 9.89/10 586,959,600 167,235,484 Sep 2021
3 linkedin.com 9.82/10 71,256,900 17,950,442 Aug 2021
4 cloudflare.com 9.78/10 984,600 93,222 Aug 2021
5 apple.com 9.66/10 12,947,600 1,709,217 Aug 2021
6 gravatar.com 9.65/10 4,500 1,601 Nov 2023
7 wikipedia.org 9.64/10 910,200 9,322 Sep 2021
8 wordpress.org 9.63/10 253,100 80,064 Sep 2021
9 x.com 9.58/10 99,443,500 16,696,073 Aug 2023
10 pinterest.com 9.58/10 102,849,200 44,261,941 Sep 2021
11 europa.eu 9.57/10 42,200 31,835 Aug 2021
12 microsoft.com 9.54/10 11,686,100 988,151 Aug 2021
13 vimeo.com 9.54/10 899,200 553,603 Sep 2021
14 tiktok.com 9.51/10 154,023,600 209,801,678 Sep 2021
15 wordpress.com 9.50/10 466,100 94,206 Aug 2021
16 amazonaws.com 9.50/10 - - Aug 2021
17 shopify.com 9.48/10 1,109,300 228,087 Sep 2021
18 adobe.com 9.48/10 8,627,700 1,068,559 Aug 2021
19 mozilla.org 9.48/10 41,800 5,538 Aug 2021
20 cloudfront.net 9.47/10 - - Sep 2021
21 amazon.com 9.47/10 351,206,500 41,126,511 Aug 2021
22 nih.gov 9.44/10 301,200 37,339 Aug 2021
23 github.io 9.43/10 1,800 1 Aug 2021
24 miit.gov.cn 9.41/10 5 1 Aug 2021
25 spotify.com 9.40/10 2,864,300 78,065 Sep 2021
26 blogspot.com 9.39/10 - - Aug 2021
27 godaddy.com 9.38/10 853,200 110,962 Sep 2021
28 paypal.com 9.36/10 4,830,900 336,712 Sep 2021
29 yandex.ru 9.35/10 32,200 67,587 Aug 2021
30 stripe.com 9.35/10 528,300 117,334 Sep 2021
31 medium.com 9.35/10 12,771,000 6,404,082 Sep 2021
32 qq.com 9.34/10 2,200 163 Aug 2021
33 shop.app 9.34/10 238,400 80,695 Feb 2022
34 office.com 9.34/10 1,707,400 30,278 Aug 2021
35 archive.org 9.34/10 3,957,300 1,511,177 Aug 2021
36 baidu.com 9.33/10 27,100 357 Aug 2021
37 vk.com 9.33/10 116,100 185,627 Aug 2021
38 w3.org 9.32/10 383,900 97,788 Jun 2022
39 reddit.com 9.31/10 831,556,900 133,049,349 Sep 2021
40 cdc.gov 9.31/10 14,977,400 1,767,892 Aug 2021
41 zoom.us 9.29/10 682,200 64,680 Aug 2021
42 forbes.com 9.28/10 11,895,600 3,957,523 Aug 2021
43 nytimes.com 9.28/10 31,192,100 10,445,019 Sep 2021
44 tumblr.com 9.27/10 5,146,200 2,235,020 Sep 2021
45 yahoo.com 9.27/10 16,064,700 10,883,592 Aug 2021
46 washingtonpost.com 9.26/10 2,034,200 1,255,983 Aug 2021
47 unsplash.com 9.26/10 4,799,000 829,828 Sep 2021
48 flickr.com 9.26/10 903,200 1,317,727 Sep 2021
49 who.int 9.26/10 3,114,700 778,407 Sep 2021
50 soundcloud.com 9.25/10 7,874,400 2,926,017 Sep 2021
51 wikimedia.org 9.25/10 26,200 5,466 Sep 2021
52 weebly.com 9.24/10 162,400 11,089 Aug 2021
53 harvard.edu 9.24/10 472,900 13,570 Aug 2021
54 gandi.net 9.23/10 12,700 2,692 Sep 2021
55 calendly.com 9.23/10 215,100 33,025 Sep 2021
56 line.me 9.23/10 57,900 397 Aug 2021
57 bund.de 9.23/10 - - Sep 2021
58 theguardian.com 9.23/10 15,181,100 3,912,803 Aug 2021
59 ca.gov 9.23/10 1,457,100 28,722 Aug 2021
60 wix.com 9.22/10 1,204,700 135,119 Sep 2021
61 hubspot.com 9.22/10 238,300 45,665 Aug 2021
62 linktr.ee 9.22/10 634,800 228,264 Sep 2021
63 apache.org 9.21/10 35,700 6,177 Sep 2021
64 dropbox.com 9.21/10 984,800 123,932 Sep 2021
65 sciencedirect.com 9.21/10 18,904,100 5,812,481 Sep 2021
66 un.org 9.21/10 2,209,200 439,253 Sep 2021
67 fb.com 9.20/10 1 4 Sep 2021
68 opera.com 9.20/10 153,200 22,019 Sep 2021
69 live.com 9.20/10 1 1 Aug 2021
70 cookiebot.com 9.19/10 3,900 2,606 Sep 2021
71 mailchimp.com 9.19/10 432,900 110,448 Sep 2021
72 www.gov.uk 9.19/10 2,597,600 1,395,843 Dec 2024
73 stanford.edu 9.19/10 3,302,700 5,160 Aug 2021
74 allaboutcookies.org 9.18/10 157,600 79,011 Jul 2026
75 bbc.co.uk 9.18/10 6,004,800 2,144,161 Sep 2021
76 mit.edu 9.18/10 163,800 31,239 Aug 2021
77 admin.ch 9.18/10 4,200 753 Sep 2021
78 researchgate.net 9.17/10 2,568,300 5,057,699 Sep 2021
79 dataprivacyframework.gov 9.17/10 3,200 3,587 Feb 2024
80 statista.com 9.17/10 1,383,900 607,685 Sep 2021
81 issuu.com 9.17/10 347,600 494,838 Sep 2021
82 oracle.com 9.16/10 1,406,200 203,855 Sep 2021
83 arxiv.org 9.16/10 1,689,700 402,985 Oct 2021
84 eventbrite.com 9.16/10 2,466,100 1,142,382 Sep 2021
85 cnn.com 9.16/10 15,960,900 3,032,217 Aug 2021
86 ftc.gov 9.16/10 919,300 216,968 Sep 2021
87 npr.org 9.16/10 10,575,400 2,190,168 Aug 2021
88 amazon.co.jp 9.16/10 56,200 85,866 Sep 2021
89 yahoo.co.jp 9.16/10 23,900 128 Aug 2021
90 tinyurl.com 9.15/10 115,100 2,095 Sep 2021
91 springer.com 9.15/10 9,000 5,811 Sep 2021
92 bbc.com 9.15/10 22,108,300 3,677,321 Aug 2021
93 nasa.gov 9.15/10 2,715,500 372,280 Aug 2021
94 51.la 9.14/10 - - Dec 2021
95 pages.dev 9.14/10 - - Sep 2021
96 trustpilot.com 9.14/10 4,788,100 791,788 Sep 2021
97 trustindex.io 9.14/10 48,000 59,950 Sep 2021
98 cnil.fr 9.14/10 3,100 2,187 Aug 2022
99 reuters.com 9.14/10 4,976,200 1,589,888 Aug 2021
100 wiley.com 9.14/10 76,900 33,308 Aug 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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