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.
| # | 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 |
|---|---|---|---|
| greenamerica.org | #107,488 | ConsentMo, Drupal, Fastly + 11 more | Find emails |
| ecri.org | #107,492 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 7 more | Find emails |
| branchdsp.io | #107,502 | Amazon Route 53, Bootstrap, Express + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| winporn.com | #107,508 | Cloudflare, Google Analytics, Let's Encrypt + 3 more | Find emails |
| rockinghoster.de | #107,517 | Adobe Fonts (Typekit), Apache, Bootstrap + 11 more | Find emails |
| budapestopenaccessinitiative.org | #107,545 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| therabody.com | #107,553 | Amazon Route 53, Cloudflare edge/CDN, FullStory + 14 more | Find emails |
| solarisjapan.com | #107,560 | Algolia, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| meinturnierplan.de | #107,594 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| newdigital-world.com | #107,635 | Google Analytics, Nginx, PHP + 2 more | Find emails |
| jetboaters.net | #107,638 | Apache, ConsentMo, DigitalOcean Spaces + 6 more | Find emails |
| legalblink.it | #107,641 | Bootstrap, Calendly, Cloudflare + 14 more | Find emails |
| carts.guru | #107,645 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 23 more | Find emails |
| mriyaresort.com | #107,656 | Bitrix, BotFAQtor, Mail.ru Analytics (Top100) + 8 more | Find emails |
| govacademyhub.com | #107,732 | Akamai edge/CDN, Cloudflare, Cloudflare edge/CDN + 1 more | Find emails |
| gsmchoice.com | #107,733 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| theeagle.com | #107,745 | 33Across, Advertising.com, Amazon Advertising + 44 more | Find emails |
| fepblue.org | #107,749 | Akamai Bot Manager, Akamai edge/CDN, DigiCert + 4 more | Find emails |
| venyoo.ru | #107,780 | AOS, Bootstrap, Fancybox + 16 more | Find emails |
| tourneau.com | #107,795 | Affirm, Cloudflare edge/CDN, DigiCert + 6 more | Find emails |
| easypromosapp.com | #107,802 | Bootstrap, CookieFirst, DigiCert + 24 more | Find emails |
| hub88.io | #107,816 | Amazon (ACM), Cloudflare, Cloudflare Bot Management + 16 more | Find emails |
| hostcats.com | #107,842 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| laimoon.com | #107,847 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| cgt.fr | #107,849 | Drupal, Let's Encrypt, Matomo + 4 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 →