Websites Powered by hCaptcha
145,086 websites tracked using hCaptcha (Security) · www.hcaptcha.com
hCaptcha is a security tool that protects the site from attacks. Its official site is hcaptcha.com. PoweredBy tracks the websites that use hCaptcha across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the security ecosystem.
Usage trend
20K
40K
60K
80K
Jun 2020
Jan 2022
Jul 2023
Feb 2025
Aug 2026
Domains observed using hCaptcha in each month's HTTP Archive crawl,
Jun 2020 to Aug 2026 · peak 63,135 in Aug 2026. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.7 s
INP 75 ms
CLS 0
TTFB 700 ms
Median site among 65,807 hCaptcha sites with Chrome UX data, p75 values, Aug 2026.
Top countries
United States
19,593
France
8,924
Germany
8,518
United Kingdom
8,220
India
6,827
Canada
5,763
Brazil
5,585
Italy
5,413
Sites using hCaptcha by audience country, Chrome UX Report.
Top sites by authority
9+
9% · 33 of 372 sites
8+
5% · 393 of 7,677 sites
7+
2% · 1,063 of 45,712 sites
6+
2% · 1,660 of 110,136 sites
5+
1% · 2,488 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running hCaptcha in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using hCaptcha
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 201 | icrc.org | 8.50/10 | 64,500 | 19,714 | Jul 2022 |
| 202 | britishcouncil.org | 8.50/10 | 20,900 | 11,121 | Oct 2025 |
| 203 | bunka.go.jp | 8.50/10 | 430 | 391 | Jun 2023 |
| 204 | icims.com | 8.49/10 | 15,400 | 3,303 | Jun 2025 |
| 205 | vlaanderen.be | 8.49/10 | 7,000 | 3,242 | Oct 2023 |
| 206 | sjsu.edu | 8.49/10 | 502,600 | 132,550 | Jul 2020 |
| 207 | unfpa.org | 8.49/10 | 44,700 | 16,137 | Jan 2025 |
| 208 | uni-goettingen.de | 8.49/10 | 6,400 | 3,874 | May 2026 |
| 209 | uni-tuebingen.de | 8.49/10 | 2,900 | 2,712 | Jul 2022 |
| 210 | ok.gov | 8.49/10 | 18,300 | 7,739 | Mar 2026 |
| 211 | sapo.pt | 8.49/10 | 10,100 | 29,601 | Jun 2022 |
| 212 | unm.edu | 8.49/10 | 35,500 | 18,884 | Oct 2023 |
| 213 | unibas.ch | 8.49/10 | 1,800 | 1,310 | Oct 2025 |
| 214 | opencollective.com | 8.48/10 | 2,300 | 1,492 | Jun 2022 |
| 215 | kvk.nl | 8.47/10 | 4,500 | 2,490 | Aug 2023 |
| 216 | poznan.pl | 8.47/10 | 320 | 564 | Jun 2026 |
| 217 | cryoutcreations.eu | 8.46/10 | 500 | 296 | Jun 2022 |
| 218 | n8n.io | 8.46/10 | 19,700 | 34,558 | Apr 2026 |
| 219 | fazenda.gov.br | 8.46/10 | - | - | Nov 2021 |
| 220 | gov.hu | 8.44/10 | - | - | Oct 2021 |
| 221 | michelin.com | 8.44/10 | 13,600 | 2,981 | Nov 2022 |
| 222 | aok.de | 8.44/10 | 25,300 | 3,309 | Jan 2024 |
| 223 | laposte.fr | 8.44/10 | 16,300 | 4,767 | Mar 2021 |
| 224 | splunk.com | 8.42/10 | 133,200 | 36,907 | Apr 2024 |
| 225 | skillshare.com | 8.42/10 | 179,400 | 91,406 | Jun 2023 |
| 226 | t-mobile.com | 8.42/10 | 4,828,300 | 1,028,647 | Aug 2026 |
| 227 | bpifrance.fr | 8.42/10 | 560 | 895 | Oct 2023 |
| 228 | nottingham.ac.uk | 8.41/10 | 117,200 | 39,587 | Mar 2025 |
| 229 | leeds.ac.uk | 8.41/10 | 8,300 | 5,209 | Mar 2025 |
| 230 | mos.ru | 8.40/10 | 2,800 | 1,648 | Jun 2022 |
| 231 | informa.com | 8.38/10 | 6,500 | 2,662 | Nov 2022 |
| 232 | ushmm.org | 8.38/10 | 161,900 | 23,458 | May 2026 |
| 233 | tohoku.ac.jp | 8.38/10 | 2,300 | 1,759 | Jun 2025 |
| 234 | ugr.es | 8.38/10 | 8,500 | 8,711 | Feb 2025 |
| 235 | qmul.ac.uk | 8.36/10 | 35,400 | 21,676 | Jan 2025 |
| 236 | st-andrews.ac.uk | 8.36/10 | 48,900 | 16,687 | Dec 2023 |
| 237 | york.ac.uk | 8.36/10 | 36,500 | 21,619 | Jan 2025 |
| 238 | wroc.pl | 8.36/10 | - | - | Feb 2025 |
| 239 | ufmg.br | 8.36/10 | 3,300 | 1,765 | Aug 2023 |
| 240 | org.ru | 8.35/10 | - | - | Jun 2026 |
| 241 | here.com | 8.35/10 | 15,600 | 9,212 | Aug 2026 |
| 242 | metamask.io | 8.35/10 | 215,700 | 16,722 | May 2026 |
| 243 | rescue.org | 8.35/10 | 111,600 | 43,157 | Mar 2025 |
| 244 | urssaf.fr | 8.35/10 | 1,700 | 1,855 | Aug 2023 |
| 245 | mq.edu.au | 8.35/10 | 15,600 | 6,546 | Jun 2022 |
| 246 | courtlistener.com | 8.34/10 | 62,300 | 52,007 | Aug 2023 |
| 247 | ibiblio.org | 8.34/10 | 78,100 | 26,605 | Jun 2022 |
| 248 | wien.gv.at | 8.34/10 | 31,000 | 4,437 | Aug 2026 |
| 249 | unicamp.br | 8.34/10 | 860 | 1,061 | Feb 2026 |
| 250 | sendpulse.com | 8.33/10 | 11,300 | 11,892 | Aug 2025 |
| 251 | notion.com | 8.33/10 | 378,800 | 220,406 | Oct 2025 |
| 252 | defense.gouv.fr | 8.33/10 | 4,300 | 2,897 | Jun 2025 |
| 253 | uw.edu.pl | 8.33/10 | 240 | 261 | Jan 2026 |
| 254 | impact.com | 8.32/10 | 48,800 | 9,808 | Nov 2025 |
| 255 | ifrs.org | 8.32/10 | 42,300 | 12,504 | Jun 2022 |
| 256 | ina.fr | 8.32/10 | 1,400 | 5,358 | Jan 2024 |
| 257 | messefrankfurt.com | 8.31/10 | 2,100 | 791 | Jan 2024 |
| 258 | aalto.fi | 8.31/10 | 4,800 | 4,406 | Jun 2022 |
| 259 | contentful.com | 8.30/10 | 23,400 | 7,441 | Jan 2025 |
| 260 | wikimediafoundation.org | 8.30/10 | 23,400 | 5,952 | Aug 2026 |
| 261 | dreamwidth.org | 8.30/10 | 170 | 243 | Nov 2022 |
| 262 | tsinghua.edu.cn | 8.30/10 | 17,600 | 2,428 | Jun 2026 |
| 263 | 3m.com | 8.30/10 | 551,800 | 132,468 | Jun 2023 |
| 264 | wyndhamhotels.com | 8.30/10 | 2,406,400 | 396,898 | Jun 2022 |
| 265 | exeter.ac.uk | 8.30/10 | 19,000 | 11,669 | Mar 2025 |
| 266 | carleton.ca | 8.30/10 | 49,300 | 20,005 | Nov 2022 |
| 267 | dal.ca | 8.30/10 | 26,100 | 12,945 | Sep 2024 |
| 268 | acer.com | 8.29/10 | 221,100 | 40,376 | Sep 2020 |
| 269 | cuhk.edu.hk | 8.29/10 | 5,100 | 1,878 | Jun 2023 |
| 270 | autismspeaks.org | 8.29/10 | 294,300 | 52,583 | Jan 2025 |
| 271 | ncl.ac.uk | 8.29/10 | 50,900 | 15,860 | Jan 2025 |
| 272 | unrealengine.com | 8.28/10 | 106,000 | 33,223 | Jun 2022 |
| 273 | spacex.com | 8.28/10 | 881,800 | 92,975 | Nov 2023 |
| 274 | icao.int | 8.28/10 | 38,400 | 10,708 | Jul 2025 |
| 275 | coingecko.com | 8.27/10 | 587,300 | 128,995 | Mar 2022 |
| 276 | airbus.com | 8.27/10 | 238,200 | 38,121 | Sep 2022 |
| 277 | vrt.be | 8.27/10 | 16,600 | 11,968 | Oct 2021 |
| 278 | phila.gov | 8.27/10 | 643,900 | 199,195 | Nov 2024 |
| 279 | fiocruz.br | 8.27/10 | 500 | 722 | Aug 2022 |
| 280 | afthemes.com | 8.26/10 | 340 | 215 | Jun 2026 |
| 281 | imperva.com | 8.26/10 | 203,400 | 20,478 | Jun 2024 |
| 282 | recruitee.com | 8.26/10 | 2,700 | 3,721 | Mar 2025 |
| 283 | yolasite.com | 8.26/10 | - | - | Feb 2023 |
| 284 | barcelona.cat | 8.26/10 | 18,300 | 7,599 | Jan 2026 |
| 285 | art.pl | 8.26/10 | - | - | Mar 2021 |
| 286 | avrotros.nl | 8.26/10 | 500 | 427 | Dec 2023 |
| 287 | dynatrace.com | 8.25/10 | 23,800 | 11,707 | Apr 2023 |
| 288 | sciencespo.fr | 8.25/10 | 33,100 | 16,968 | Dec 2023 |
| 289 | adf.org.au | 8.24/10 | 217,500 | 40,191 | Jul 2026 |
| 290 | bath.ac.uk | 8.24/10 | 21,600 | 13,262 | Jun 2022 |
| 291 | tidyverse.org | 8.23/10 | 1,700 | 1,152 | Jun 2025 |
| 292 | unitedway.org | 8.23/10 | 70,800 | 33,154 | Jan 2025 |
| 293 | o2switch.fr | 8.23/10 | 86 | 85 | Jun 2022 |
| 294 | basf.com | 8.23/10 | 24,000 | 17,424 | Oct 2022 |
| 295 | surrey.ac.uk | 8.23/10 | 8,700 | 7,648 | Jan 2025 |
| 296 | arthritis.org | 8.23/10 | 579,100 | 157,926 | Jan 2025 |
| 297 | grok.com | 8.22/10 | 337,300 | 2,706 | Jul 2026 |
| 298 | soton.ac.uk | 8.22/10 | - | - | Feb 2025 |
| 299 | camh.ca | 8.22/10 | 111,300 | 28,720 | Oct 2025 |
| 300 | uoguelph.ca | 8.22/10 | 21,400 | 14,311 | Jul 2024 |
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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