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.
| # | 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 |
|---|---|---|---|
| oabpr.org.br | #164,603 | Cloudflare, Cloudflare edge/CDN, Elementor + 11 more | Find emails |
| vzy.io | #164,645 | Cloudflare, Google Analytics, Google Cloud + 5 more | Find emails |
| ihire.com | #164,686 | ASP.NET, Bootstrap, Cloudflare + 11 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | nist.gov | #231 (Tranco) | Find emails |
| metergroup.com |
| #164,761 |
| Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more |
| Find emails |
| deltastate.edu | #164,796 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| sexjobs.nl | #164,797 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| hospitalitytech.com | #164,798 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| erasmusintern.org | #164,799 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| yoursocialpeople.com | #164,801 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| oregonmetro.gov | #164,803 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 5 more | Find emails |
| dnd-wiki.org | #164,808 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 4 more | Find emails |
| eldi.be | #164,823 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| glp.diet | #164,825 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| ballbusting.cc | #164,844 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| genyoutube.online | #164,845 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 3 more | Find emails |
| vietnam-briefing.com | #164,849 | Google Tag Manager, Microsoft Clarity, New Relic + 6 more | Find emails |
| journalofhospitalinfection.com | #164,865 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| bankofindia.com | #164,877 | Akamai Edge DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| wikihealth.gr | #164,894 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| michiganbusiness.org | #164,917 | AddThis, Adobe Fonts (Typekit), Bootstrap + 10 more | Find emails |
| 98a98.com | #164,925 | Alibaba Cloud CDN, Cloudflare Bot Management, Cloudflare R2 + 4 more | Find emails |
| thehrdirector.com | #164,942 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 6 more | Find emails |
| schutz.com.br | #164,948 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| backroads.com | #164,949 | Cloudflare Bot Management, Cloudflare edge/CDN, Drupal + 9 more | Find emails |
| flyert.com | #164,951 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 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 →