CAPTCHA & Bot Protection
50,387 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.
| # | 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 |
|---|---|---|---|
| mybroadband.co.za | #28,068 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| safenames.com | #28,085 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert + 1 more | Find emails |
| fruugo.com | #28,087 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| cpr.org | #28,101 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| controlc.com | #28,137 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| zed.dev | #28,140 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| cricheroes.com | #28,143 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| rocket.chat | #28,146 | AWS Lambda, Amazon Route 53, Azure API Management + 20 more | Find emails |
| allaboutcircuits.com | #28,176 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| reporterre.net | #28,205 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| metallica.com | #28,214 | Cloudflare Bot Management, Cloudflare edge/CDN, Let's Encrypt | Find emails |
| casino.guru | #28,263 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| itsfoss.com | #28,277 | Amazon Advertising, Blockthrough, Bluesky + 17 more | Find emails |
| sir90hl.com | #28,282 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| minecraftforum.net | #28,287 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| tabletmag.com | #28,289 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| drunkenslug.com | #28,299 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| cshlp.org | #28,359 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| siam.org | #28,394 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| hofstra.edu | #28,396 | AOS, Adobe Fonts (Typekit), Amazon (ACM) + 11 more | Find emails |
| surl.li | #28,436 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| anirena.com | #28,469 | Buy Me a Coffee, Cloudflare, Cloudflare edge/CDN + 3 more | Find emails |
| screenmeet.com | #28,493 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 26 more | Find emails |
| zyrosite.com | #28,504 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| atsjournals.org | #28,566 | Cloudflare Bot Management, Cloudflare edge/CDN, Let's Encrypt | 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →