How many websites use hCaptcha?

StackPulse currently detects hCaptcha on 240 websites, which is 0.21% of the 115,150 domains in the index. The count is refreshed as the crawler re-scans the web.

How do I check whether a website uses hCaptcha?

Open the free StackPulse lookup, enter the domain and the security section will list hCaptcha if its scripts, headers or markup are present. Developers can call GET /v1/lookup/:domain.

Can I download a list of websites that use hCaptcha?

Yes. Lead Export filters the index by hCaptcha (optionally combined with other technologies) and streams the matching domains as CSV, up to 50,000 rows per file.

hCaptcha is a security technology. It ranks #3 of 3 security technologies by number of websites in the StackPulse index.

Security

Websites using hCaptcha

StackPulse detects hCaptcha on 240 websites — 0.21% of the 115,150 domains in the index — making it the #3 security technology we track. Updated October 27, 2026.

Websites detected

240

Share of index

0.21%

Rank in Security

#3 of 3

Indexed websites

115,150

Download all 240 hCaptcha websites as CSV

Top websites using hCaptcha

Ordered by traffic rank. Each profile shows the complete detected stack.

wpguardian.com
with Amplitude, Google Tag Manager, WordPress, Cloudflare
6 tech
hcaptcha.com
with Cloudflare, Webflow
3 tech
globo.com
with Google Ads, Google Tag Manager, Google Fonts, reCAPTCHA
5 tech
linode.com
with Adobe Experience Platform, Akamai, OneTrust, jQuery
6 tech
evernote.com
with Next.js
2 tech
webflow.com
with Cloudflare, Google Fonts, jQuery, reCAPTCHA
6 tech
medallia.com
with Adobe Experience Platform, Google Tag Manager, WordPress, Cloudflare
8 tech
beget.com
with Nuxt
2 tech
clickup.com
with Google Ads, Contentful, Next.js, Amazon CloudFront
8 tech
bazaarvoice.com
with Google Tag Manager, WordPress, Fastly, Varnish
9 tech
thenounproject.com
with Google Tag Manager, Next.js, Nginx, Adobe Fonts
6 tech
webgo.de
with Magento, PayPal, Matomo, Nginx
6 tech
edmentum.com
with Google Tag Manager, Amazon CloudFront, Nginx, VWO
9 tech
jumpcloud.com
with Google Tag Manager, WordPress, Amazon CloudFront, Apache
9 tech
dish.com
with Adobe Experience Platform, Amazon CloudFront
3 tech
icims.com
with Google Tag Manager, WordPress, Fastly, Varnish
10 tech
psychologicalscience.org
with Google Ads, Google Tag Manager, WordPress, Cloudflare
8 tech
signifyd.com
with Google Tag Manager, WordPress, Cloudflare, OneTrust
8 tech
hostelworld.com
with Segment, Google Tag Manager, Nuxt, TrustArc
7 tech
smartrecruiters.com
with Google Tag Manager, WordPress, Cloudflare, Adobe Fonts
8 tech
anaconda.com
with Google Tag Manager, WordPress, Cloudflare, jQuery
6 tech
workday.com
with Adobe Experience Platform, Amazon CloudFront, Apache, jQuery
6 tech
ifrs.org
with Google Tag Manager, Apache, Google Fonts, jQuery
6 tech
pixeldrain.com
1 tech
supermicro.com
with Magento, Mailchimp, Google Ads, GA4
15 tech
themehorse.com
with WooCommerce, Apple Pay, Google Pay, PayPal
14 tech
city-journal.org
with Google Tag Manager, WordPress, Amazon CloudFront, Osano
7 tech
flightglobal.com
with Google Ads, GA4, WordPress, Cloudflare
7 tech
kornferry.com
with Google Tag Manager, Cloudflare, TrustArc, Google Fonts
9 tech
restaurant.org
with Google Tag Manager, Google Fonts, jQuery, Marketo
6 tech
globalvoices.org
with Mailchimp, Google Ads, GA4, Plausible
8 tech
f2pool.com
with Google Ads, GA4, Google Tag Manager, Cloudflare
6 tech
usertesting.com
with Google Tag Manager, Drupal, Fastly, VWO
8 tech
goserver.host
with PayPal, Nginx, Microsoft Clarity
4 tech
nosto.com
with Google Tag Manager, WordPress, Cloudflare, Adobe Fonts
8 tech
zuora.com
with Amplitude, Google Tag Manager, WordPress, Nginx
8 tech
mangakatana.com
with Google Ads, Nginx, jQuery
4 tech
themarkup.org
with PayPal, Stripe, WordPress, Nginx
5 tech
five9.com
with Google Tag Manager, Drupal, Fastly, Varnish
10 tech
nutritionfacts.org
with Meta Pixel, Google Tag Manager, Algolia, WordPress
9 tech
mytheresa.com
with Adyen, PayPal, Akamai
4 tech
thetradedesk.com
with Adobe Experience Platform, Google Tag Manager, Cloudflare, OneTrust
7 tech
owncloud.com
with Google Tag Manager, WordPress, Nginx, Cookiebot
8 tech
petzl.com
with Salesforce Commerce Cloud, GA4, Google Tag Manager, Cloudflare
6 tech
informatechtarget.com
with Google Tag Manager, WordPress, Cloudflare, Optimizely
9 tech
scssoft.com
with Google Tag Manager, Nginx, jQuery
4 tech
cegid.com
with WordPress, Cloudflare, jQuery, reCAPTCHA
5 tech
aveva.com
with Adobe Experience Platform, Google Tag Manager, Drift, Cloudflare
9 tech
resideo.com
with Shopify, Google Tag Manager, Bazaarvoice, Optimizely
10 tech
outsystems.com
with Amplitude, Google Tag Manager, Amazon CloudFront, Cloudflare
11 tech
bancosantander.es
with Tealium, Next.js, Amazon CloudFront
4 tech
casel.org
with PayPal, GA4, Google Tag Manager, WordPress
10 tech
localiq.com
with Google Tag Manager, WordPress, Cloudflare, VWO
8 tech
gamcore.com
with Nginx, Google Fonts, jQuery
4 tech
har.com
with Google Ads, Meta Pixel, Nginx, Google Fonts
6 tech
rsc.org.uk
with Shopify, Google Ads, Meta Pixel, TikTok Pixel
12 tech
bny.com
with Adobe Experience Platform, Akamai, Fastly, OneTrust
5 tech
azul.com
with Google Tag Manager, WordPress, Cloudflare, Optimizely
7 tech
xrite.com
with Google Tag Manager, Amazon CloudFront, Microsoft IIS, OneTrust
7 tech
ezlynx.com
with Google Tag Manager, Cloudflare, VWO, Google Fonts
8 tech

Technologies used together with hCaptcha

Websites using jQuery 71.67% of hCaptcha sites
Websites using Google Tag Manager 60.42% of hCaptcha sites
Websites using reCAPTCHA 51.67% of hCaptcha sites
Websites using WordPress 41.67% of hCaptcha sites
Websites using Cloudflare 41.25% of hCaptcha sites
Websites using Google Fonts 37.08% of hCaptcha sites
Websites using Google Ads 27.5% of hCaptcha sites
Websites using Nginx 22.5% of hCaptcha sites

Other Security technologies

Websites using reCAPTCHA 6,567 sites
Websites using Cloudflare Turnstile 1,049 sites

Technology directory →

Frequently asked questions

How many websites use hCaptcha?: StackPulse currently detects hCaptcha on 240 websites, which is 0.21% of the 115,150 domains in the index. The count is refreshed as the crawler re-scans the web.
How do I check whether a website uses hCaptcha?: Open the free StackPulse lookup, enter the domain and the security section will list hCaptcha if its scripts, headers or markup are present. Developers can call GET /v1/lookup/:domain.
Can I download a list of websites that use hCaptcha?: Yes. Lead Export filters the index by hCaptcha (optionally combined with other technologies) and streams the matching domains as CSV, up to 50,000 rows per file.
What is hCaptcha?: hCaptcha is a security technology. It ranks #3 of 3 security technologies by number of websites in the StackPulse index.

Look up any domain by API

One call returns the ecommerce platform, payment gateways, marketing pixels and infrastructure. Results are cached for a week.

curl -H "x-api-key: YOUR_KEY" \
  https://stackpulseapi.com/v1/lookup/wpguardian.com

Read the API docs

Export lead lists as CSV

Filter the whole index by stack (for example Shopify stores without Klaviyo) and download up to 50,000 domains per file. 1 credit per row.

Open Lead Export Plans from $99/month →