PageSourceSearch / Technologies / Consent, security and monitoring / hCaptcha Consent, security and monitoring
Websites using hCaptcha
hCaptcha is a privacy-focused CAPTCHA service.
About 14,109 websites in the PageSourceSearch index contain the code that reveals it; the 50 highest-ranked are listed below.
How is hCaptcha detected?
Pages load its API from js.hcaptcha.com/1/api.js. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
js.hcaptcha.com/1/api.js Search the index for it
A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About hCaptcha
Top 50 websites using hCaptcha
Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-09-30 18:20:07 UTC.
# Website Rank Found in
1
webflow.com 206
js https://go.webflow.com/js/forms2/js/forms2.min.js
view source profile
2
bunny.net 739
js https://bunny.net/docs/_next/static/…KMXQCVjZumqQJrsEjue3C59
view source profile
3
evernote.com 744
html https://evernote.com/
view source profile
4
claude.com 779
js https://code.claude.com/docs/_next/s…KMXQCVjZumqQJrsEjue3C59
view source profile
5
mariadb.com 795
js https://go.mariadb.com/js/forms2/js/forms2.min.js
view source profile
6
nvidia.com 812
js https://images.nvidia.com/aem-dam/So…/ot-js/ot-custom.js
view source profile
7
bazel.build 999
js https://bazel.build/mintlify-assets/…GVcNKTjFEbzPDf6xwjtsSMR
view source profile
8
modelcontextprotocol.io 1,057
js https://modelcontextprotocol.io/mint…GVcNKTjFEbzPDf6xwjtsSMR
view source profile
9
sproutsocial.com 1,074
js https://pages.connect.sproutsocial.c…/js/forms2.min.js
view source profile
10
checkpoint.com 1,242
js https://pages.checkpoint.com/js/forms2/js/forms2.min.js
view source profile
11
foursquare.com 1,263
js https://connect.foursquare.com/js/forms2/js/forms2.min.js
view source profile
12
auth0.com 1,284
js https://auth0.com/mintlify-assets/_n…GVcNKTjFEbzPDf6xwjtsSMR
view source profile
13
tealium.com 1,673
js https://pages.tealium.com/js/forms2/js/forms2.min.js
view source profile
14
meltwater.com 1,838
js https://learn.meltwater.com/js/forms…?cachebuster=
view source profile
15
pixlr.com 1,886
js https://pixlr.com/dist/editor.73213e1d3e85caebae18.js
view source profile
16
metamask.io 1,912
js https://developer.metamask.io/assets/index-BBdDAQgV.js
view source profile
17
datadoghq.com 1,955
js https://lp.datadoghq.com/js/forms2/js/forms2.min.js
view source profile
18
aarp.org 1,998
html https://secure.aarp.org/applications/user/login
view source profile
19
workday.com 2,054
js https://info2.workday.com/js/forms2/js/forms2.js
view source profile
20
wipro.com 2,112
js https://go.wipro.com/js/forms2/js/forms2.min.js
view source profile
21
appsflyer.com 2,229
js https://go.appsflyer.com/js/forms2/j…forms2.min.js?ver=7.1.1
view source profile
22
yubico.com 2,275
js https://pages.yubico.com/js/forms2/js/forms2.min.js
view source profile
23
sentinelone.com 2,434
js https://go.sentinelone.com/js/forms2/js/forms2.min.js
view source profile
24
usertesting.com 2,480
js https://pages.usertesting.com/js/forms2/js/forms2.min.js
view source profile
25
highspot.com 2,515
js https://p.highspot.com/js/forms2/js/forms2.min.js
view source profile
26
integralads.com 2,543
js https://go.integralads.com/js/forms2/js/forms2.min.js
view source profile
27
dashlane.com 2,618
js https://go.dashlane.com/js/forms2/js/forms2.min.js
view source profile
28
razorpay.com 2,670
js https://razorpay.com/mintlify-assets…GVcNKTjFEbzPDf6xwjtsSMR
view source profile
29
gong.io 2,702
js https://hitthe.gong.io/js/forms2/js/forms2.min.js
view source profile
30
salesloft.com 2,719
js https://pages.salesloft.com/js/forms2/js/forms2.min.js
view source profile
31
linode.com 2,858
js https://content.linode.com/js/forms2/js/forms2.min.js
view source profile
32
thenounproject.com 2,947
js https://static.production.thenounpro…8f8c18808638648f30d7.js
view source profile
33
humansecurity.com 2,961
js https://info.humansecurity.com/js/forms2/js/forms2.min.js
view source profile
34
payoneer.com 3,045
js https://go.payoneer.com/js/forms2/js/forms2.min.js?ver=16.9
view source profile
35
etsi.org 3,091
html https://www.etsi.org/about/contact/
view source profile
36
trustarc.com 3,180
js https://info.trustarc.com/js/forms2/js/forms2.min.js
view source profile
37
afp.com 3,263
js https://page.afp.com/js/forms2/js/forms2.min.js
view source profile
38
acxiom.com 3,369
js https://marketing.acxiom.com/js/forms2/js/forms2.min.js
view source profile
39
cohere.com 3,419
js https://go.cohere.com/js/forms2/js/forms2.min.js
view source profile
40
bazaarvoice.com 3,487
js https://resources.bazaarvoice.com/js/forms2/js/forms2.min.js
view source profile
41
quantcast.com 3,545
js https://info.quantcast.com/js/forms2/js/forms2.min.js
view source profile
42
ebrd.com 3,632
js https://info.ebrd.com/js/forms2/js/forms2.min.js
view source profile
43
smartrecruiters.com 3,641
js https://ta.smartrecruiters.com/js/forms2/js/forms2.min.js
view source profile
44
uptimeinstitute.com 3,675
js https://datacenter.uptimeinstitute.c…/js/forms2.min.js
view source profile
45
oktopost.com 3,805
js https://info.oktopost.com/js/forms2/js/forms2.min.js
view source profile
46
scoop.it 3,842
html https://www.scoop.it/pricing
view source profile
47
statnews.com 3,891
js https://www.statnews.com/wp-content/…=ab36679d082ae2e6d40f
view source profile
48
ifrs.org 3,976
html https://www.ifrs.org/
view source profile
49
phonepe.com 4,058
js https://www.phonepe.com/webstatic/14…ae9ec7f19b3ccb2f60e8.js
view source profile
50
bitcointalk.org 4,144
html https://bitcointalk.org/index.php?action=login
view source profile
How it appears in the source
From webflow.com (js):
ck":"captchaExpired","data-sitekey":""},d={hCaptcha:{cls:"h-captcha",scriptSrc:"https://js.hcaptcha.com/1/api.js?onload=captchaCallback"},reCaptcha:{cls:"g-recaptcha",scriptSrc:"https://www.google.com
See every site: search for js.hcaptcha.com/1/api.js
Questions about finding hCaptcha
How does PageSourceSearch know a website uses hCaptcha?
By the source itself: Pages load its API from js.hcaptcha.com/1/api.js. PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
Is this a complete list of websites using hCaptcha?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 14,109 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
How do I find websites that use hCaptcha together with another technology?
Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example js.hcaptcha.com/1/api.js with wp-content/plugins/ lists the WordPress sites that use hCaptcha.