Security & WAF
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.
| # | 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 |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| oabsp.org.br | #52,786 | Adobe Fonts (Typekit), Adopt, Bootstrap + 17 more | Find emails |
| publicsurplus.com | #52,806 | Bootstrap, Google Analytics, Google Tag Manager + 2 more | Find emails |
| bluettipower.com | #52,842 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 5 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| hentairox.com | #52,897 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| gpfans.com | #52,912 | Chartbeat, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| alcoa.com | #52,926 | ASP.NET, AppsFlyer, Bootstrap + 17 more | Find emails |
| spoken-tutorial.org | #52,935 | Bootstrap, Django, Font Awesome + 8 more | Find emails |
| freestyler.ws | #52,960 | Google Analytics, Google Fonts, Nginx + 4 more | Find emails |
| daemon-tools.cc | #52,979 | Amazon (ACM), Amazon Route 53, Google Analytics + 5 more | Find emails |
| qa.com | #52,990 | BrightEdge, Google Fonts, Google Maps + 7 more | Find emails |
| gtlaw.com | #53,002 | Amazon Route 53, Cloudflare edge/CDN, DigiCert + 8 more | Find emails |
| domeny.tv | #53,031 | AngularJS, DigiCert, Google Analytics + 4 more | Find emails |
| orthofeet.com | #53,112 | Cloudflare, Cloudflare edge/CDN, Intelligems + 6 more | Find emails |
| 3dexport.com | #53,153 | Bootstrap, Cloudflare Turnstile, DigiCert + 13 more | Find emails |
| streetmap.co.uk | #53,158 | ASP.NET, Google Analytics, Google Tag Manager + 6 more | Find emails |
| justica.gov.pt | #53,178 | ASP.NET, Amazon Route 53, AngularJS + 12 more | Find emails |
| cipherkey.com | #53,210 | Bootstrap, Google Analytics, Google Fonts + 6 more | Find emails |
| legalinsurrection.com | #53,220 | All in One SEO, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| 24rosa.nl | #53,232 | Google Tag Manager, Let's Encrypt, LiteSpeed + 7 more | Find emails |
| seegreen.net | #53,272 | Apache, Fancybox, Font Awesome + 13 more | Find emails |
| westga.edu | #53,289 | Azure Front Door, Bootstrap, Cludo + 16 more | Find emails |
| pornslash.com | #53,334 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 3 more | Find emails |
| educationdata.org | #53,358 | Google Analytics, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| easyspace.com | #53,360 | DigiCert, Font Awesome, Google Fonts + 11 more | Find emails |
| ias.ac.in | #53,375 | Amazon (ACM), Amazon Route 53, Apache + 12 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →