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 |
|---|---|---|---|
| pgsharp.com | #40,212 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| amiami.com | #40,219 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| gls-pakete.de | #40,231 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| businessresearchinsights.com | #40,240 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| e-elgar.com | #40,286 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| barilla.com | #40,312 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert | Find emails |
| hwupgrade.it | #40,333 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 6 more | Find emails |
| tvtoday.de | #40,353 | Cloudflare Bot Management, Cloudflare edge/CDN, Let's Encrypt | Find emails |
| dotroll.com | #40,362 | Better Uptime, Bootstrap, Cloudflare + 24 more | Find emails |
| fleetfarm.com | #40,368 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| jetpens.com | #40,373 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| mediaworld.it | #40,407 | Akamai Edge DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| radiocut.fm | #40,418 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| wort.lu | #40,419 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| superpal.com | #40,434 | Adobe Audience Manager, Amazon Advertising, Arkose Labs + 29 more | Find emails |
| instantcheckmate.com | #40,458 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| altaro.com | #40,463 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| hebe.pl | #40,489 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| ultramobile.com | #40,491 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| zolo.ca | #40,496 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| ripleys.com | #40,498 | Cloudflare edge/CDN, Font Awesome, Google Tag Manager + 3 more | Find emails |
| chirpbooks.com | #40,500 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| dostor.org | #40,508 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| lawinfo.com | #40,526 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| boerse-online.de | #40,529 | ASP.NET, DigiCert, DoubleClick (Google Ads) + 4 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 →