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.
Other captcha & bot protection
| # | 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 |
|---|---|---|---|
| bongacams6.com | #53,318 | Google Analytics, Google Tag Manager, Nginx | Find emails |
| whos.tv | #53,341 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| openguessr.com | #53,359 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| dfs.co.uk | #53,372 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| elitepvpers.com | #53,400 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| telnavi.jp | #53,408 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| ynhhs.org | #53,420 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| pdfsam.org | #53,452 | Bluesky, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| zzb.bz | #53,475 | Apache, Bootstrap, Google Analytics + 5 more | Find emails |
| nationalparks.org | #53,506 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| lavishluck.net | #53,551 | Amazon CloudFront, Google Ads Conversion, Google Analytics + 17 more | Find emails |
| eporner.video | #53,582 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 7 more | Find emails |
| homechef.com | #53,618 | Amplitude, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| alphaspread.com | #53,629 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| unbc.ca | #53,637 | AOS, AddToAny, Cloudflare Bot Management + 10 more | Find emails |
| tatuum.com | #53,677 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| progarchives.com | #53,720 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| allianz.at | #53,727 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| kickass.ws | #53,741 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| uplus.co.kr | #53,766 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| moemax.de | #53,775 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| just-eat.dk | #53,779 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| feedbooks.com | #53,817 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| justfly.com | #53,819 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| busphoto.eu | #53,825 | 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-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →