CAPTCHA & Bot Protection
49,994 of the 1,000,000 top sites in our Tranco top-1M census run Cloudflare Turnstile (5%). Cloudflare's non-interactive CAPTCHA replacement, bundled free with its CDN/WAF. Detection is homepage-level HTML/header fingerprinting, so a site can run Cloudflare Turnstile on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | x.com | #54 (Tranco) | Find emails |
| 2 | discord.com | #163 (Tranco) | Find emails |
| 3 | flickr.com | #172 (Tranco) | Find emails |
| 4 | soundcloud.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| imhentai.xxx | #1,380 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| sex-studentki.team | #1,385 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| fapello.com | #1,391 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | nist.gov | #231 (Tranco) | Find emails |
| toyhou.se | #1,405 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| 18comic.vip | #1,410 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| arca.live | #1,421 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 1 more | Find emails |
| jable.tv | #1,435 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| cardmarket.com | #1,457 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| fpo.xxx | #1,461 | Cloudflare, Fancybox, Google Analytics + 4 more | Find emails |
| wpastra.com | #1,462 | AB Tasty, AddThis, Adobe Analytics + 109 more | Find emails |
| luxuretv.com | #1,467 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 5 more | Find emails |
| netkeiba.com | #1,469 | Adingo, Amazon (ACM), Amazon CloudFront + 17 more | Find emails |
| gamewith.jp | #1,477 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| buydomains.com | #1,483 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| mangafire.to | #1,495 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| sex-studentki.cafe | #1,496 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| 123av.com | #1,510 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 3 more | Find emails |
| supjav.com | #1,511 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| fatalmodel.com | #1,515 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| missav.ai | #1,521 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| tabletki.ua | #1,532 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| listcrawler.eu | #1,545 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| skokka.com | #1,581 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| twpornstars.com | #1,594 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| hentai.name | #1,605 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 10 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 →