Security & WAF

Websites using reCAPTCHA v2

56,626 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA v2 (5.7%). Google's challenge-response service that verifies whether a site visitor is human or a bot. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA v2 on other pages without it showing here.

Check a URL Full dataset overview

Other security & waf

Cloudflare Bot Management80,437 sites reCAPTCHA v315,494 sites Akamai Bot Manager6,154 sites

Highest-ranked

Top websites using reCAPTCHA v2

#	Domain	Global traffic rank	Contacts
1	apache.org	#125 (Tranco)	Find emails
2	w3.org	#184 (Tranco)	Find emails
3	pushy.io	#467 (Tranco)	Find emails
4	sharethrough.com

The list

56,626 sites using reCAPTCHA v2

Site	Tranco rank	Also detected	Contacts
codns.net	#48,298	Apache, Google AdSense, Google Analytics + 4 more	Find emails
dcceew.gov.au	#48,357	Akamai Bot Manager, Akamai edge/CDN, Drupal + 8 more	Find emails
conepuppy.com	#48,479	Apache, Bootstrap, Google Analytics + 5 more	Find emails