CAPTCHA & Bot Protection
91,344 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9.1%). Google's CAPTCHA/bot-scoring widget, the most widely deployed CAPTCHA by far. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | apache.org | #125 (Tranco) | Find emails |
| 3 | one.one | #160 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| moldcell.md | #108,781 | Adobe Fonts (Typekit), Bootstrap, DoubleClick (Google Ads) + 16 more | Find emails |
| annfammed.org | #108,783 | Bluesky, Bootstrap, Cloudflare Bot Management + 15 more | Find emails |
| bestel.com.mx | #108,797 | DigiCert, Google Fonts, Microsoft 365 | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| protonstatus.com |
| #108,831 |
| Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 8 more |
| Find emails |
| maisfontes.com | #108,832 | Cloudflare, Ezoic, Gatekeeper Consent Management Platform + 6 more | Find emails |
| convercy.app | #108,843 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| every.to | #108,852 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 9 more | Find emails |
| awanti.com | #108,860 | jQuery, reCAPTCHA v2 | Find emails |
| trainual.com | #108,886 | AWS Lambda, Calendly, Cloudflare + 12 more | Find emails |
| radaromega.com | #108,913 | Amazon (ACM), Amazon Route 53, Bootstrap + 12 more | Find emails |
| lojaintegrada.com.br | #108,918 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| tapuz.co.il | #108,940 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| icehosting.nl | #108,965 | Apache, Font Awesome, PHP + 3 more | Find emails |
| sexymeet.tv | #108,972 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| radiomast.io | #108,977 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 14 more | Find emails |
| steris.com | #108,997 | Adobe Experience Cloud (Launch), Amazon CloudFront, Azure DNS + 22 more | Find emails |
| vendoo.co | #109,013 | AWS Lambda, Cloudflare, Cloudflare Web Analytics + 18 more | Find emails |
| metalposters.com | #109,014 | Amazon (ACM), Amazon Route 53, Apache + 7 more | Find emails |
| meadd.com | #109,026 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 4 more | Find emails |
| yeptube.com | #109,036 | Cloudflare, Google Analytics, Let's Encrypt + 3 more | Find emails |
| vograce.com | #109,049 | Alibaba Cloud DNS, Cloudflare edge/CDN, Fancybox + 12 more | Find emails |
| dnn4less.com | #109,065 | ASP.NET, Apache, Bootstrap + 7 more | Find emails |
| kadenze.com | #109,073 | Amazon (ACM), Amazon Route 53, Google Analytics + 14 more | Find emails |
| domdom.net | #109,089 | Apache, Google Fonts, Let's Encrypt + 1 more | Find emails |
| getfastr.com | #109,113 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 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-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →