How many websites use reCAPTCHA?

StackPulse currently detects reCAPTCHA on 6,567 websites, which is 5.7% 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 reCAPTCHA?

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

Can I download a list of websites that use reCAPTCHA?

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

reCAPTCHA is a security technology. It ranks #1 of 3 security technologies by number of websites in the StackPulse index.

Security

Websites using reCAPTCHA

StackPulse detects reCAPTCHA on 6,567 websites — 5.7% of the 115,150 domains in the index — making it the #1 security technology we track. Updated October 27, 2026.

Websites detected

6,567

Share of index

5.7%

Rank in Security

#1 of 3

Indexed websites

115,150

Download all 6,567 reCAPTCHA websites as CSV

Top websites using reCAPTCHA

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

spotify.com
with Fastly
2 tech
weebly.com
with Cloudflare, Adobe Fonts, jQuery
4 tech
g.page
with Google Ads, GA4, Universal Analytics, Google Fonts
5 tech
duckdns.org
with Google Ads, GA4, Nginx, jQuery
5 tech
eventbrite.com
with Adyen, Authorize.net, Braintree, PayPal
25 tech
pki.goog
with Google Ads, GA4, Google Tag Manager, Google Fonts
5 tech
time.com
with Google Ads, Meta Pixel, GA4, Google Tag Manager
12 tech
techcrunch.com
with Google Tag Manager, WordPress, Cloudflare, HubSpot
6 tech
mailchimp.com
with Google Tag Manager, Akamai, Optimizely, OneTrust
6 tech
independent.co.uk
with Google Tag Manager, Fastly, Varnish
4 tech
hbr.org
with BigCommerce, Afterpay, Google Ads, LinkedIn Insight Tag
15 tech
theverge.com
with Stripe, WordPress, Next.js, Fastly
7 tech
dnsmadeeasy.com
with Adobe Experience Platform, Fastly, OneTrust
4 tech
webmd.com
with Adobe Experience Platform, Cloudflare
3 tech
tp-link.com
with Amazon CloudFront, Apache, jQuery
4 tech
globo.com
with Google Ads, Google Tag Manager, Google Fonts, hCaptcha
5 tech
taboola.com
with Google Tag Manager, WordPress, VWO
4 tech
wpastra.com
with Authorize.net, Braintree, Mollie, PayPal
55 tech
paloaltonetworks.com
with Adobe Experience Platform, Akamai, Apache, Google Fonts
6 tech
gofundme.com
with Next.js, Amazon CloudFront, Nginx
4 tech
business.site
with Google Tag Manager, Google Fonts
3 tech
teamviewer.com
with Adobe Experience Platform, Cloudflare, OneTrust
4 tech
variety.com
with Google Ads, LinkedIn Insight Tag, GA4, Google Tag Manager
11 tech
medicalnewstoday.com
with Shopify, GA4, Google Tag Manager, WordPress
8 tech
klaviyo.com
with Klaviyo, Google Tag Manager, Sanity, WordPress
8 tech
slate.com
with Criteo, LinkedIn Insight Tag, Amplitude, Fastly
8 tech
sharethrough.com
with Google Tag Manager, Cloudflare, jQuery, Webflow
5 tech
mediafire.com
with Amplitude, Google Tag Manager, Cloudflare, Google Fonts
6 tech
kick.com
with Shopify, Stripe, Criteo, Google Ads
11 tech
itch.io
with Google Ads, Cloudflare
3 tech
hollywoodreporter.com
with Shopify, Google Ads, GA4, Google Tag Manager
11 tech
linode.com
with Adobe Experience Platform, Akamai, OneTrust, jQuery
6 tech
uber.com
with Reddit Pixel, Snap Pixel, Mixpanel, Tealium
12 tech
abcnews.com
with Shopify, Google Ads, GA4, Google Tag Manager
8 tech
kpmg.com
with Adobe Experience Platform, Fastly, OneTrust
4 tech
brookings.edu
with Google Tag Manager, WordPress, Cloudflare, Osano
7 tech
parklogic.com
with Google Fonts, jQuery
3 tech
webflow.io
with Google Tag Manager, Cloudflare, Google Fonts, jQuery
6 tech
classlink.com
with Google Tag Manager, Cloudflare, Adobe Fonts, Google Fonts
8 tech
hootsuite.com
with Google Tag Manager, Contentful, WordPress, Next.js
10 tech
zapier.com
with OpenCart, Google Ads, LinkedIn Insight Tag, Meta Pixel
20 tech
nymag.com
with Stripe, Fastly, OneTrust
4 tech
chaturbate.com
with Google Ads, GA4, Cloudflare
4 tech
metro.co.uk
with GA4, WordPress, Nginx, Google Fonts
5 tech
salon.com
with Google Tag Manager, WordPress, Amazon CloudFront, Apache
6 tech
costco.com
with Criteo, Adobe Experience Platform, Bazaarvoice, Next.js
7 tech
urbandictionary.com
with Google Ads, GA4
3 tech
deadline.com
with Google Ads, GA4, Google Tag Manager, WordPress
10 tech
netgear.com
with Salesforce Commerce Cloud, PayPal, GA4, Google Tag Manager
9 tech
virtualmin.com
with WooCommerce, Braintree, PayPal, Matomo
10 tech
billboard.com
with Shopify, Google Ads, LinkedIn Insight Tag, Google Tag Manager
11 tech
dictionary.com
with Google Tag Manager, WordPress, Cloudflare, Google Fonts
5 tech
thestar.com
with Google Tag Manager, Google Fonts
3 tech
asana.com
with Next.js, Netlify, Optimizely, OneTrust
5 tech
rocketmoney.dev
with Google Tag Manager, Amazon CloudFront, Nginx, Framer
5 tech
cookieadmin.net
with Cloudflare, Google Fonts, jQuery
4 tech
directadmin.com
with Cloudflare
2 tech
ctvnews.ca
with Akamai, Optimizely, Google Fonts, Braze
5 tech
namebright.com
with Google Tag Manager, Angular, Cloudflare
4 tech
simpli.fi
with Google Ads, LinkedIn Insight Tag, Meta Pixel, Google Tag Manager
9 tech

Technologies used together with reCAPTCHA

Websites using Google Tag Manager 64.55% of reCAPTCHA sites
Websites using jQuery 62.78% of reCAPTCHA sites
Websites using Google Fonts 48.91% of reCAPTCHA sites
Websites using WordPress 42.47% of reCAPTCHA sites
Websites using Google Ads 35.3% of reCAPTCHA sites
Websites using Cloudflare 34.99% of reCAPTCHA sites
Websites using GA4 28.41% of reCAPTCHA sites
Websites using Nginx 21.73% of reCAPTCHA sites

Other Security technologies

Websites using Cloudflare Turnstile 1,049 sites
Websites using hCaptcha 240 sites

Technology directory →

Frequently asked questions

How many websites use reCAPTCHA?: StackPulse currently detects reCAPTCHA on 6,567 websites, which is 5.7% 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 reCAPTCHA?: Open the free StackPulse lookup, enter the domain and the security section will list reCAPTCHA if its scripts, headers or markup are present. Developers can call GET /v1/lookup/:domain.
Can I download a list of websites that use reCAPTCHA?: Yes. Lead Export filters the index by reCAPTCHA (optionally combined with other technologies) and streams the matching domains as CSV, up to 50,000 rows per file.
What is reCAPTCHA?: reCAPTCHA is a security technology. It ranks #1 of 3 security technologies by number of websites in the StackPulse index.

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