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 |
|---|---|---|---|
| physorg.com | #29,976 | — | Find emails |
| bitpanda.com | #30,007 | Amazon CloudFront, Cloudflare, Cloudflare Bot Management + 15 more | Find emails |
| shi.com | #30,016 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| ouo.io |
| #30,028 |
| Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more |
| Find emails |
| ifla.org | #30,035 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| snagajob.com | #30,072 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| desiringgod.org | #30,073 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| idx.co.id | #30,087 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| empower.com | #30,100 | Amplitude, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| avforums.com | #30,117 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| visitnorway.com | #30,127 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| coindcx.com | #30,151 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| qr-code-generator.com | #30,165 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| zumba.com | #30,192 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| kyero.com | #30,195 | Cloudflare, Cloudflare edge/CDN, CookieYes + 3 more | Find emails |
| ajmc.com | #30,212 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| reclaimhosting.com | #30,221 | Amazon Route 53, Bluesky, Cloudflare Bot Management + 11 more | Find emails |
| donorperfect.net | #30,232 | Bootstrap, Cloudflare, Cloudflare Bot Management + 7 more | Find emails |
| youglish.com | #30,253 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 6 more | Find emails |
| routeyou.com | #30,260 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| tsmc.com | #30,284 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| basescan.org | #30,303 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| camelcamelcamel.com | #30,311 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| biodiversitylibrary.org | #30,336 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| bcz.com | #30,345 | Backbone.js, Cloudflare, Cloudflare Bot Management + 8 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →