Websites Using reCAPTCHA
Google's bot-detection service for forms and logins. We found reCAPTCHA on 231 of 5,816 scanned top-website homepages (4.0%), making it #1 among security. The most popular sites using it are spotify.com, duckdns.org and pki.goog.
Official site: developers.google.com/recaptcha
Security compared
Often used with reCAPTCHA
Share of reCAPTCHA sites that also use each technology.
Top websites using reCAPTCHA
| Rank | Website | Registered |
|---|---|---|
| #71 | spotify.com | 2006 |
| #184 | duckdns.org | 2013 |
| #187 | pki.goog | 2016 |
| #273 | dnsmadeeasy.com | 2001 |
| #330 | weebly.com | 2006 |
| #396 | globo.com | 1998 |
| #451 | duolingo.com | 2010 |
| #514 | docker.com | 1995 |
| #590 | teamviewer.com | 2004 |
| #607 | klaviyo.com | 2012 |
| #645 | techcrunch.com | 2005 |
| #687 | parklogic.com | 2007 |
| #697 | cdnvideo.ru | — |
| #704 | kick.com | 1995 |
| #765 | fontawesome.com | 2012 |
| #899 | pornhub.com | 2000 |
| #936 | classlink.com | 1998 |
| #954 | docker.io | 2012 |
| #958 | smilewanted.com | 2015 |
| #997 | costco.com | 1997 |
| #1,007 | webmd.com | 1998 |
| #1,008 | clever.com | 1995 |
| #1,117 | gofundme.com | 2010 |
| #1,262 | ixl.com | 1995 |
| #1,329 | redtube.com | 2006 |
| #1,341 | lookmovie2.to | 2022 |
| #1,343 | bbb.org | 1995 |
| #1,383 | pornhub.org | 2004 |
| #1,453 | jutarnji.hr | — |
| #1,602 | therapservices.net | 2003 |
| #1,809 | loopia.se | — |
| #1,926 | amocrm.ru | — |
| #1,952 | waze.com | 2000 |
| #1,959 | sprinthost.ru | — |
| #1,991 | sweb.ru | — |
| #2,074 | intentiq.com | 2008 |
| #2,109 | business.site | 2017 |
| #2,177 | primis.tech | 2018 |
| #2,197 | trustedstack.com | 2017 |
| #2,205 | asana.com | 2009 |
| #2,223 | aniview.com | 2009 |
| #2,267 | variety.com | 1996 |
| #2,271 | adswizz.com | 2007 |
| #2,410 | spaceweb.ru | — |
| #2,439 | admatic.de | — |
| #2,521 | flurry.com | 1998 |
| #2,550 | mojohost.com | 2002 |
| #2,572 | hollywoodreporter.com | 1995 |
| #2,677 | like.video | 2017 |
| #2,734 | sportradar.com | 1998 |
| #2,793 | kinghost.com.br | 2003 |
| #2,816 | webflow.com | 2003 |
| #2,909 | narod.ru | — |
| #2,912 | telenet.be | — |
| #2,921 | phys.org | 2002 |
| #2,963 | webflow.io | 2013 |
| #2,978 | omni-dex.io | 2025 |
| #3,122 | heyzine.com | 2017 |
| #3,134 | mountain.com | 1997 |
| #3,148 | cvent.com | 1999 |
| #3,185 | trafficjunky.net | 2008 |
| #3,191 | opsgenie.com | 2012 |
| #3,194 | myanimelist.net | 2006 |
| #3,202 | hybrid.ai | 2017 |
| #3,219 | metro.co.uk | 1995 |
| #3,228 | the-ozone-project.com | 2018 |
| #3,235 | usp.br | 1996 |
| #3,244 | billboard.com | 1996 |
| #3,248 | brookings.edu | — |
| #3,256 | dictionary.com | 1995 |
| #3,260 | iterable.com | 2011 |
| #3,264 | onaudience.com | 2015 |
| #3,282 | federalregister.gov | 2008 |
| #3,378 | cancer.org | 1994 |
| #3,404 | copper6.com | 2023 |
| #3,433 | deadline.com | 1995 |
| #3,505 | sundaysky.com | 2006 |
| #3,510 | backblaze.com | 2007 |
| #3,522 | urbandictionary.com | 2001 |
| #3,526 | smartsheet.com | 2001 |
| #3,551 | likeevideo.ru | — |
| #3,712 | paysafecard.com | 2000 |
| #3,716 | archdaily.com | 2007 |
| #3,740 | serveriai.lt | — |
| #3,768 | toyota.com | 1994 |
| #3,799 | nazwa.pl | 1999 |
| #3,869 | easydns.com | 1998 |
| #3,877 | apnic.net | 1993 |
| #3,883 | 4shared.com | 2005 |
| #3,996 | namebright.com | 2005 |
| #4,010 | cyberfolks.pl | 2019 |
| #4,032 | thestar.com | 1995 |
| #4,080 | heroku.com | 2007 |
| #4,095 | krushmedia.com | 2012 |
| #4,191 | compass.com | 1992 |
| #4,262 | mailerlite.com | 2010 |
| #4,299 | likee.video | 2019 |
| #4,358 | propublica.org | 2007 |
| #4,428 | kaggle.com | 2009 |
| #4,436 | directadmin.com | 2002 |
| #4,520 | pa.gov | 2001 |
| #4,565 | tinkercad.com | 2009 |
| #4,631 | certum.pl | 2000 |
| #4,664 | foreignpolicy.com | 1996 |
| #4,707 | infobip.com | 2003 |
| #4,710 | mosyle.com | 2012 |
| #4,834 | adweek.com | 1995 |
| #4,869 | tunein.com | 1996 |
| #4,898 | peatix.com | 2010 |
| #4,954 | vizio.com | 1996 |
| #4,963 | motorola.com | 1994 |
| #5,068 | nato.int | 1997 |
| #5,080 | pp.ua | 2008 |
| #5,086 | wedos.cz | 2006 |
| #5,183 | everydayhealth.com | 2004 |
| #5,295 | mercadopago.com.br | 2003 |
| #5,296 | ecfr.gov | 2012 |
| #5,300 | scielo.br | 1998 |
| #5,311 | overleaf.com | 2008 |
| #5,381 | myheritage.com | 2001 |
| #5,442 | zerocdn.com | 2013 |
| #5,486 | thinkwithgoogle.com | 2010 |
| #5,487 | yeastar.com | 2006 |
| #5,535 | tradeinn.com | 2001 |
| #5,546 | orange.es | — |
| #5,598 | netnod.se | — |
| #5,707 | blacknight.com | 2002 |
| #5,743 | ajax.systems | 2014 |
| #5,791 | cbs.com | 1993 |
| #5,808 | thinkific.com | 2012 |
| #5,838 | streamable.com | 2003 |
| #5,946 | funplus.com | 1997 |
| #5,984 | ledauphine.com | 1997 |
| #6,017 | secondlife.com | 2002 |
| #6,033 | fourseasons.com | 1997 |
| #6,054 | admixer.net | 2007 |
| #6,077 | formstack.com | 2010 |
| #6,084 | bambuser.com | 2007 |
| #6,137 | radio-canada.ca | 2000 |
| #6,143 | motherjones.com | 1995 |
| #6,185 | webnode.com | 1999 |
| #6,192 | alltel24.ru | — |
| #6,349 | videoamp.com | 2001 |
| #6,350 | leprogres.fr | 1996 |
| #6,351 | wwd.com | 1995 |
| #6,379 | aqsi.ru | — |
| #6,383 | mywot.com | 2006 |
| #6,388 | tate.org.uk | 1996 |
| #6,408 | thenation.com | 1995 |
| #6,486 | bbcgoodfood.com | 2000 |
| #6,504 | csiro.au | — |
| #6,532 | funnyjunk.com | 2001 |
| #6,647 | getpublica.com | 2016 |
| #6,673 | travian.com | 2002 |
| #6,735 | unicamp.br | 1996 |
| #6,750 | jfrog.io | 2013 |
| #6,802 | costco.ca | 2000 |
| #6,934 | sbb.rs | — |
| #6,986 | like-video.com | 2018 |
| #6,988 | cmtelematics.com | 2012 |
| #7,020 | medicalxpress.com | 2005 |
| #7,035 | wetest.net | 2006 |
| #7,052 | digi24.ro | — |
| #7,096 | viralxxxporn.com | 2024 |
| #7,099 | control4.com | 2003 |
| #7,197 | thesaurus.com | 1995 |
| #7,222 | dm.de | — |
| #7,229 | zerogpt.com | 2023 |
| #7,248 | poynter.org | 1994 |
| #7,265 | uncn.jp | — |
| #7,281 | mybharat.gov.in | 2023 |
| #7,320 | klix.ba | — |
| #7,342 | robertsspaceindustries.com | 2012 |
| #7,346 | unirioja.es | — |
| #7,392 | langame.ru | — |
| #7,398 | eldebate.com | 1999 |
| #7,447 | mudah.my | — |
| #7,450 | poringa.net | 2007 |
| #7,514 | alodokter.com | 2013 |
| #7,526 | warframe.com | 2012 |
| #7,558 | itemsatis.com | 2018 |
| #7,619 | rule34.us | — |
| #7,628 | net-line.pro | 2016 |
| #7,635 | kff.org | 1995 |
| #7,654 | ledger.com | 1994 |
| #7,675 | monkeytype.com | 2019 |
| #7,765 | delaware.gov | 1999 |
| #7,766 | slobodnadalmacija.hr | — |
| #7,879 | talon-sec.com | 2020 |
| #7,932 | sojern.com | 2007 |
| #7,962 | bash.com | 1995 |
| #7,969 | pocketoption.com | 2016 |
| #7,980 | camwhores.tv | 2015 |
| #7,994 | donedeal.ie | — |
| #8,022 | admatic.com.tr | — |
| #8,113 | libramemoria.com | 2009 |
| #8,138 | drogariasaopaulo.com.br | 1999 |
| #8,144 | dotloop.com | 2009 |
| #8,152 | mtb.com | 2000 |
| #8,156 | newsit.gr | — |
| #8,233 | cameraprive.com | 2012 |
| #8,253 | happymail.co.jp | — |
| #8,274 | showroomprive.com | 2006 |
| #8,327 | indiewire.com | 1997 |
| #8,389 | xasiat.com | 2017 |
| #8,494 | newsbomb.gr | — |
| #8,529 | staples.com | 1995 |
| #8,560 | camstreams.tv | 2019 |
| #8,591 | tvp.pl | 2000 |
| #8,675 | transmit.live | 2016 |
| #8,684 | popcornnews.ru | — |
| #8,935 | ncore.pro | 2020 |
| #9,017 | anses.gob.ar | — |
| #9,052 | sexiha.cam | 2025 |
| #9,106 | dealer.com | 1995 |
| #9,115 | cardtrader.com | 1999 |
| #9,167 | electrodepot.fr | 2004 |
| #9,179 | misli.az | — |
| #9,239 | ridigital.org.br | 2024 |
| #9,251 | redtube.com.br | 2007 |
| #9,373 | megapersonals.eu | — |
| #9,415 | rosszlanyok.hu | — |
| #9,444 | arabsex1.com | 2020 |
| #9,451 | trafficjunky.com | 2001 |
| #9,486 | juegosonce.es | — |
| #9,667 | prehrajto.cz | — |
| #9,678 | alfavita.gr | — |
| #9,860 | suramericana.com | 1998 |
| #9,897 | dvrlists.com | 2010 |
| #9,947 | sat.co.id | 2002 |
| #9,974 | sexetag.com | 2008 |
Detected from homepage HTML and response headers. Sites that load reCAPTCHA only after JavaScript runs, after a consent banner, or on inner pages may not be counted.