Websites Powered by core-js

16,630,018 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 Jun 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 5,218,063 core-js sites with Chrome UX data, p75 values, Jun 2026.

Top countries

United States 1,479,835
India 495,926
United Kingdom 457,421
Germany 439,161
Brazil 420,075
France 369,824
Canada 341,001
Italy 336,371

Sites using core-js by audience country, Chrome UX Report.

Top sites by authority

9+ 65% · 242 of 372 sites
8+ 67% · 5,108 of 7,677 sites
7+ 57% · 26,213 of 45,712 sites
6+ 52% · 57,082 of 110,136 sites
5+ 44% · 109,074 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
1201 theaustralian.com.au 8.59/10 53,000 73,402 Sep 2021
1202 rts.ch 8.59/10 9,700 13,279 Jan 2023
1203 ma.tt 8.58/10 5,700 939 Sep 2021
1204 uservoice.com 8.58/10 1,000 867 Sep 2021
1205 segment.com 8.58/10 15,800 4,169 Sep 2021
1206 givingtuesday.org 8.58/10 32,800 10,110 Sep 2021
1207 morningconsult.com 8.58/10 520 501 Sep 2021
1208 helpscout.com 8.58/10 30,500 9,972 Sep 2021
1209 sa.com 8.58/10 - - Sep 2021
1210 prestashop.com 8.58/10 1,300 2,024 Sep 2021
1211 salesforce-sites.com 8.58/10 - - Oct 2022
1212 rubyonrails.org 8.58/10 20,700 2,955 Oct 2024
1213 msgsndr.com 8.58/10 - - Mar 2022
1214 hackernoon.com 8.58/10 176,100 70,217 Sep 2021
1215 workable.com 8.58/10 6,000 2,575 Sep 2021
1216 kit.com 8.58/10 29,100 9,349 Sep 2021
1217 pipedrive.com 8.58/10 70,600 23,810 Aug 2021
1218 datareportal.com 8.58/10 14,100 12,516 Jan 2022
1219 tickettailor.com 8.58/10 21,600 23,474 Sep 2021
1220 instructure.com 8.58/10 363,900 21,158 Aug 2021
1221 state.tx.us 8.58/10 - - Sep 2021
1222 thespruce.com 8.58/10 5,428,500 1,238,001 Sep 2021
1223 eater.com 8.58/10 421,800 151,518 Aug 2021
1224 garmin.com 8.58/10 1,027,200 249,401 Sep 2021
1225 ebay.de 8.58/10 4,600 11,732 Sep 2021
1226 warwick.ac.uk 8.58/10 45,500 33,900 Aug 2021
1227 handelsblatt.com 8.58/10 4,800 8,127 Sep 2021
1228 jimdosite.com 8.58/10 - - Sep 2021
1229 ucf.edu 8.58/10 343,100 84,810 Aug 2021
1230 tvp.pl 8.58/10 1,500 1,073 Aug 2021
1231 tesla.com 8.58/10 4,078,600 580,303 Sep 2021
1232 bundesfinanzministerium.de 8.58/10 2,700 1,911 Sep 2021
1233 wto.org 8.58/10 234,600 39,569 Aug 2021
1234 allocine.fr 8.58/10 652,300 277,022 Aug 2021
1235 hamburg.de 8.58/10 2,000 2,955 Aug 2021
1236 fu-berlin.de 8.58/10 11,500 7,748 Sep 2021
1237 univie.ac.at 8.58/10 10,000 1,103 Sep 2021
1238 nd.gov 8.58/10 111,300 16,742 Aug 2021
1239 alberta.ca 8.58/10 115,900 65,281 Sep 2021
1240 usdoj.gov 8.58/10 1 1 Sep 2021
1241 bpb.de 8.58/10 17,500 5,454 Sep 2021
1242 uni-heidelberg.de 8.58/10 8,000 4,696 Sep 2021
1243 jugem.jp 8.58/10 18 6 Oct 2021
1244 archives-ouvertes.fr 8.58/10 - - Feb 2023
1245 ipa.go.jp 8.58/10 400 554 Sep 2021
1246 unam.mx 8.58/10 1,900 1,196 Aug 2021
1247 tv-asahi.co.jp 8.58/10 900 464 Aug 2021
1248 theage.com.au 8.58/10 33,800 33,737 Sep 2021
1249 internetmatters.org 8.57/10 227,800 20,688 Sep 2021
1250 rambler.ru 8.57/10 5,700 83 Sep 2021
1251 adjust.com 8.57/10 154,800 10,863 Sep 2021
1252 a8.net 8.57/10 12 10 Jul 2022
1253 myftpupload.com 8.57/10 - - Apr 2022
1254 consultant.ru 8.57/10 520 666 Sep 2021
1255 akamai.com 8.57/10 68,700 20,576 Sep 2021
1256 readme.io 8.57/10 - - Sep 2021
1257 sourceforge.io 8.57/10 - - Sep 2021
1258 towardsdatascience.com 8.57/10 80,800 72,086 Sep 2021
1259 shoptet.cz 8.57/10 16 14 Sep 2021
1260 callrail.com 8.57/10 7,700 3,546 Sep 2021
1261 provenexpert.com 8.57/10 1,700 7,276 Sep 2021
1262 neocities.org 8.57/10 23,000 6,887 Sep 2021
1263 codeberg.org 8.57/10 3,000 3,303 Sep 2021
1264 jpmorgan.com 8.57/10 910,900 131,123 Sep 2021
1265 aaa.com 8.57/10 2,170,600 474,323 Aug 2021
1266 euractiv.com 8.57/10 33,100 21,691 Sep 2021
1267 redbull.com 8.57/10 685,300 218,064 Oct 2021
1268 marketsandmarkets.com 8.57/10 27,600 26,489 May 2022
1269 ebay.co.uk 8.57/10 226,600 255,198 Aug 2021
1270 ausha.co 8.57/10 3,300 2,430 Aug 2021
1271 bloomberglaw.com 8.57/10 16,800 11,878 Sep 2021
1272 rtl.fr 8.57/10 3,800 7,784 Sep 2021
1273 uschamber.com 8.57/10 528,400 110,225 Sep 2021
1274 agid.gov.it 8.57/10 130 352 Sep 2021
1275 service-public.gouv.fr 8.57/10 27,100 10,448 Nov 2025
1276 sudouest.fr 8.57/10 12,100 26,518 Sep 2021
1277 imperial.ac.uk 8.57/10 65,500 49,885 Sep 2021
1278 wri.org 8.57/10 61,500 42,306 Sep 2021
1279 skatteverket.se 8.57/10 4,100 2,223 Sep 2021
1280 nydailynews.com 8.57/10 162,200 254,817 Aug 2021
1281 byu.edu 8.57/10 71,300 7,371 Aug 2021
1282 helsinki.fi 8.57/10 10,800 5,290 Sep 2021
1283 gov.on.ca 8.57/10 - - Sep 2021
1284 northeastern.edu 8.57/10 104,200 14,005 Aug 2021
1285 lacounty.gov 8.57/10 308,300 23,022 Aug 2021
1286 cnr.it 8.57/10 810 1,174 Sep 2021
1287 ru.nl 8.57/10 3,700 3,479 Sep 2021
1288 ualberta.ca 8.57/10 69,300 47,780 Sep 2021
1289 usf.edu 8.57/10 453,200 120,359 Aug 2021
1290 ansa.it 8.57/10 7,400 13,991 Sep 2021
1291 wisconsin.gov 8.57/10 127,800 2,079 Sep 2021
1292 assemblee-nationale.fr 8.57/10 3,700 3,041 Sep 2021
1293 taz.de 8.57/10 4,100 5,749 Sep 2021
1294 20minutes.fr 8.57/10 15,500 20,527 Sep 2021
1295 aftonbladet.se 8.57/10 27,900 21,485 Aug 2021
1296 betterhealth.vic.gov.au 8.57/10 1,764,100 546,469 Sep 2021
1297 ad.nl 8.57/10 37,900 19,926 Sep 2021
1298 kyoto-u.ac.jp 8.57/10 4,800 3,548 Aug 2021
1299 amp.dev 8.56/10 2,800 665 Mar 2022
1300 sciencefocus.com 8.56/10 625,200 176,262 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) →

Compare core-js

Related JavaScript libraries

Look up any website for free

No paywall, no lead-gen, no account. Paste a domain and see what powers it.

No account neededHistory since 2018