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 |
|---|---|---|---|
| water.org | #90,669 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| apaonline.org | #90,693 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| postnord.se | #90,698 | Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| hyread.com.tw |
| #90,710 |
| Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more |
| Find emails |
| startingstrength.com | #90,736 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| ticketmelon.com | #90,758 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| fpay.support | #90,783 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| gundogdumobilya.com.tr | #90,817 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| wikidirective.com | #90,819 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 6 more | Find emails |
| milled.com | #90,833 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 11 more | Find emails |
| zinnedproject.org | #90,853 | Bluesky, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| makmur76.life | #90,894 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| instawork.com | #90,899 | AWS Lambda, Amazon Route 53, Amplitude + 30 more | Find emails |
| mywikiparty.com | #90,903 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 6 more | Find emails |
| bookbaby.com | #90,922 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 19 more | Find emails |
| posters.cz | #90,928 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| 037-anime.com | #90,969 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| tiranagam.org | #90,995 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| doomwiki.org | #91,000 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| uwinit.com | #91,001 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| viralsweep.com | #91,006 | AWS Lambda, ActiveCampaign, Cloudflare + 21 more | Find emails |
| kanliao7.org | #91,018 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| x-tatar.com | #91,019 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| egov.go.th | #91,053 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| unicef.fr | #91,055 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 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 →