Websites Powered by core-js
17,008,721 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
Feb 2024
May 2025
Aug 2026
Domains observed using core-js in each month's HTTP Archive crawl,
Aug 2021 to Aug 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 5,233,067 core-js sites with Chrome UX data, p75 values, Aug 2026.
Top countries
United States
1,320,418
India
439,882
Brazil
411,231
United Kingdom
404,005
Germany
391,462
France
311,727
Canada
298,167
Italy
291,018
Sites using core-js by audience country, Chrome UX Report.
Top sites by authority
9+
65% · 243 of 372 sites
8+
66% · 5,081 of 7,677 sites
7+
57% · 26,045 of 45,712 sites
6+
51% · 56,582 of 110,136 sites
5+
44% · 107,942 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 |
|---|---|---|---|---|---|
| 501 | mass.gov | 8.82/10 | 3,564,100 | 1,351,010 | Sep 2021 |
| 502 | clinicaltrials.gov | 8.82/10 | 154,900 | 72,567 | Sep 2021 |
| 503 | taobao.com | 8.81/10 | 9,100 | 2,995 | Aug 2021 |
| 504 | bitbucket.org | 8.81/10 | 19,400 | 2,274 | Sep 2021 |
| 505 | it.com | 8.81/10 | - | - | Sep 2021 |
| 506 | owasp.org | 8.81/10 | 69,200 | 29,196 | Dec 2023 |
| 507 | engadget.com | 8.81/10 | 626,600 | 409,586 | Sep 2021 |
| 508 | aol.com | 8.81/10 | 5,489,500 | 5,207,079 | Sep 2021 |
| 509 | perplexity.ai | 8.81/10 | 752,700 | 72,065 | Feb 2023 |
| 510 | lww.com | 8.81/10 | 12,200 | 1,642 | Sep 2021 |
| 511 | rollingstone.com | 8.81/10 | 3,889,800 | 1,225,881 | Sep 2021 |
| 512 | euronews.com | 8.81/10 | 349,500 | 218,199 | Sep 2021 |
| 513 | aljazeera.com | 8.81/10 | 2,602,600 | 601,305 | Sep 2021 |
| 514 | nber.org | 8.81/10 | 105,600 | 83,792 | Sep 2021 |
| 515 | mpg.de | 8.81/10 | 59,700 | 20,903 | Sep 2021 |
| 516 | eeoc.gov | 8.81/10 | 672,000 | 176,608 | Aug 2022 |
| 517 | undp.org | 8.81/10 | 220,100 | 57,922 | Aug 2021 |
| 518 | colorado.gov | 8.81/10 | 81,400 | 12,781 | Aug 2021 |
| 519 | hud.gov | 8.81/10 | 610,800 | 65,061 | Apr 2025 |
| 520 | nejm.org | 8.81/10 | 541,200 | 217,655 | Sep 2021 |
| 521 | stores.jp | 8.81/10 | 75 | 236 | Aug 2021 |
| 522 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | Aug 2021 |
| 523 | zeit.de | 8.81/10 | 13,300 | 15,974 | Sep 2021 |
| 524 | soumu.go.jp | 8.81/10 | 1,000 | 724 | Sep 2021 |
| 525 | www.gov.cn | 8.80/10 | 18 | 100 | Jul 2023 |
| 526 | amap.com | 8.80/10 | 2,900 | 21 | Feb 2022 |
| 527 | kakao.com | 8.80/10 | 51 | 39 | Aug 2021 |
| 528 | gumroad.com | 8.80/10 | 14,100 | 9,120 | Sep 2021 |
| 529 | squareup.com | 8.80/10 | 1,029,000 | 164,769 | Sep 2021 |
| 530 | ycombinator.com | 8.80/10 | 311,800 | 53,954 | Sep 2021 |
| 531 | forrester.com | 8.80/10 | 19,100 | 14,438 | Sep 2021 |
| 532 | fc2.com | 8.80/10 | 5,100 | 10 | Aug 2021 |
| 533 | oaic.gov.au | 8.80/10 | 4,700 | 3,485 | Apr 2023 |
| 534 | seznam.cz | 8.80/10 | 11,300 | 1,169 | Sep 2021 |
| 535 | slate.com | 8.80/10 | 1,036,100 | 429,509 | Oct 2021 |
| 536 | shrm.org | 8.80/10 | 338,100 | 114,977 | Sep 2021 |
| 537 | redcross.org | 8.80/10 | 2,363,400 | 433,255 | Feb 2022 |
| 538 | sfu.ca | 8.80/10 | 210,600 | 61,463 | Sep 2021 |
| 539 | utah.gov | 8.80/10 | 129,900 | 27,432 | Aug 2021 |
| 540 | in.gov | 8.80/10 | 3,076,000 | 1,001,546 | Sep 2021 |
| 541 | bitly.com | 8.79/10 | 133,500 | 16,485 | Sep 2021 |
| 542 | ipsos.com | 8.79/10 | 23,800 | 18,825 | Aug 2022 |
| 543 | woocommerce.com | 8.79/10 | 112,100 | 24,386 | Sep 2021 |
| 544 | teamviewer.com | 8.79/10 | 251,100 | 26,876 | Aug 2021 |
| 545 | about.me | 8.79/10 | 81,200 | 59,807 | Sep 2021 |
| 546 | nikkei.com | 8.79/10 | 1,900 | 2,469 | Aug 2021 |
| 547 | khanacademy.org | 8.79/10 | 10,214,400 | 2,037,764 | Sep 2021 |
| 548 | unfccc.int | 8.79/10 | 226,500 | 80,909 | Dec 2021 |
| 549 | hrw.org | 8.79/10 | 759,300 | 96,371 | Sep 2021 |
| 550 | fraunhofer.de | 8.79/10 | 2,900 | 3,059 | Aug 2021 |
| 551 | cancer.org | 8.79/10 | 1,616,500 | 291,235 | Sep 2021 |
| 552 | hopkinsmedicine.org | 8.79/10 | 9,812,100 | 1,276,317 | Sep 2021 |
| 553 | leparisien.fr | 8.79/10 | 20,200 | 35,048 | Sep 2021 |
| 554 | lesechos.fr | 8.79/10 | 8,900 | 14,217 | Sep 2021 |
| 555 | uzh.ch | 8.79/10 | 7,800 | 3,263 | Sep 2021 |
| 556 | nsf.gov | 8.79/10 | 351,800 | 109,183 | Sep 2021 |
| 557 | playstation.com | 8.78/10 | 5,277,700 | 668,998 | Aug 2021 |
| 558 | hp.com | 8.78/10 | 2,701,800 | 494,419 | Aug 2021 |
| 559 | t-online.de | 8.78/10 | 14,400 | 18,405 | Aug 2021 |
| 560 | technologyreview.com | 8.78/10 | 78,000 | 70,427 | Sep 2021 |
| 561 | calameo.com | 8.78/10 | 8,700 | 28,770 | Sep 2021 |
| 562 | amazon.it | 8.78/10 | 17,000 | 44,909 | Sep 2021 |
| 563 | mn.gov | 8.78/10 | 964,200 | 281,325 | Sep 2021 |
| 564 | unep.org | 8.78/10 | 189,100 | 71,991 | Sep 2021 |
| 565 | georgetown.edu | 8.78/10 | 138,100 | 27,817 | Aug 2021 |
| 566 | pa.gov | 8.78/10 | 3,838,500 | 1,368,223 | Sep 2021 |
| 567 | msu.edu | 8.78/10 | 149,500 | 2,641 | Aug 2021 |
| 568 | nhtsa.gov | 8.78/10 | 1,188,400 | 375,879 | Sep 2021 |
| 569 | michigan.gov | 8.78/10 | 3,521,000 | 1,176,642 | Sep 2021 |
| 570 | welt.de | 8.78/10 | 13,000 | 17,191 | Sep 2021 |
| 571 | mext.go.jp | 8.78/10 | 1,300 | 1,556 | Sep 2021 |
| 572 | env.go.jp | 8.78/10 | 12,100 | 4,606 | Sep 2021 |
| 573 | mps.gov.cn | 8.77/10 | 470 | 268 | Nov 2023 |
| 574 | odoo.com | 8.77/10 | 63,000 | 27,307 | Sep 2021 |
| 575 | dmca.com | 8.77/10 | 10,900 | 671 | Sep 2021 |
| 576 | sproutsocial.com | 8.77/10 | 356,500 | 79,831 | Sep 2021 |
| 577 | wpenginepowered.com | 8.77/10 | - | - | Aug 2022 |
| 578 | eu.com | 8.77/10 | - | - | Aug 2021 |
| 579 | adweek.com | 8.77/10 | 181,200 | 156,158 | Aug 2021 |
| 580 | kpmg.com | 8.77/10 | 125,800 | 81,369 | Sep 2021 |
| 581 | asana.com | 8.77/10 | 542,100 | 89,414 | Sep 2021 |
| 582 | uber.com | 8.77/10 | 2,357,500 | 481,915 | Aug 2021 |
| 583 | smithsonianmag.com | 8.77/10 | 1,783,900 | 509,308 | Sep 2021 |
| 584 | unhcr.org | 8.77/10 | 178,800 | 55,400 | Sep 2021 |
| 585 | amazon.com.au | 8.77/10 | 100,200 | 229,491 | Sep 2021 |
| 586 | gouv.qc.ca | 8.77/10 | - | - | Aug 2021 |
| 587 | ourworldindata.org | 8.77/10 | 449,100 | 218,519 | Apr 2026 |
| 588 | ardmediathek.de | 8.77/10 | 38,900 | 38,284 | Sep 2021 |
| 589 | bu.edu | 8.77/10 | 813,200 | 295,729 | Aug 2021 |
| 590 | dreamhost.com | 8.76/10 | 34,700 | 11,767 | Sep 2021 |
| 591 | rfc-editor.org | 8.76/10 | 16,300 | 9,990 | Jun 2026 |
| 592 | samaritans.org | 8.76/10 | 9,400 | 10,764 | Aug 2021 |
| 593 | onesignal.com | 8.76/10 | 6,600 | 4,280 | Sep 2021 |
| 594 | oreilly.com | 8.76/10 | 681,500 | 104,646 | Sep 2021 |
| 595 | elastic.co | 8.76/10 | 98,000 | 51,373 | Sep 2021 |
| 596 | bilibili.com | 8.76/10 | 17,900 | 87,098 | Aug 2021 |
| 597 | mitre.org | 8.76/10 | 29,700 | 11,059 | Oct 2021 |
| 598 | wufoo.com | 8.76/10 | 9,400 | 4,724 | Sep 2021 |
| 599 | deezer.com | 8.76/10 | 219,100 | 408,574 | Sep 2021 |
| 600 | bigcartel.com | 8.76/10 | 3,300 | 2,021 | 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) →
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