Security & WAF
56,180 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA v2 (5.6%). 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 |
|---|---|---|---|
| fireprobe.net | #79,514 | AOS, Google AdSense, Google Analytics + 3 more | Find emails |
| spotidown.app | #79,528 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| lufian.com | #79,533 | Ahrefs Analytics, Google Analytics, Google Fonts + 9 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| myradioonline.pl | #79,557 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 5 more | Find emails |
| edponline.com.br | #79,569 | ASP.NET, DoubleClick (Google Ads), Dynatrace + 8 more | Find emails |
| tower.com | #79,587 | Cloudflare edge/CDN, Google Hosted Libraries, Google Maps + 6 more | Find emails |
| capitalautoauction.com | #79,615 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| designtaxi.com | #79,650 | AdZerk (Kevel), AddThis, Bluesky + 24 more | Find emails |
| mcaffeine.com | #79,661 | Cloudflare edge/CDN, GoKwik, Google Analytics + 12 more | Find emails |
| reformal.ru | #79,662 | Amazon Route 53, Google Analytics, Google Hosted Libraries + 9 more | Find emails |
| poppyplaytime.com | #79,670 | Attentive, Cloudflare edge/CDN, Judge.me + 5 more | Find emails |
| orias.fr | #79,675 | Apache, Bootstrap, Google Analytics + 7 more | Find emails |
| pammys.com | #79,684 | Cloudflare edge/CDN, ConsentMo, Google Analytics + 7 more | Find emails |
| portronics.com | #79,752 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| like4like.org | #79,789 | AOS, Bootstrap, Cloudflare + 8 more | Find emails |
| makeship.com | #79,823 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 10 more | Find emails |
| pornovore.fr | #79,883 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 5 more | Find emails |
| fortimailcloud.com | #79,943 | Amazon CloudFront, Atlassian Statuspage, DigiCert + 6 more | Find emails |
| m3aarf.com | #79,976 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 16 more | Find emails |
| ahead-nutrition.com | #79,979 | Cloudflare edge/CDN, Cookiebot, Google Tag Manager + 8 more | Find emails |
| gametop.com | #80,023 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| foulabook.com | #80,031 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| kaft.com | #80,055 | Amazon (ACM), Amazon Route 53, Apache + 8 more | Find emails |
| neothek.com | #80,059 | All in One SEO, Bootstrap, Cloudflare edge/CDN + 19 more | Find emails |
| 100ms.live | #80,072 | Amazon CloudFront, Amazon Route 53, Atlassian Statuspage + 11 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →