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 |
|---|---|---|---|
| azdes.gov | #53,895 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| imodules.com | #53,909 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| bet365.com.au | #53,917 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| cloudabove.com | #53,963 | Crisp, Font Awesome, Google Analytics + 10 more | Find emails |
| luzernerzeitung.ch | #53,966 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| nma.gov.au | #53,970 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| e6ai.net | #53,983 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| themanifest.com | #53,998 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| flixpatrol.com | #54,000 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| yuanta.com.tw | #54,021 | ASP.NET, Akamai Edge DNS, Bootstrap + 8 more | Find emails |
| vcloud.zip | #54,042 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| multimap.com | #54,052 | Arkose Labs, Azure DNS | Find emails |
| audiokarma.org | #54,057 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| kiyoh.com | #54,063 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| indexxx.com | #54,080 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| drata.com | #54,104 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| gartic.io | #54,110 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| favi.hu | #54,141 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| lucidtrading.com | #54,148 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| dok.ua | #54,149 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| allianz.fr | #54,176 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| logical.net | #54,217 | Google Analytics, Google Fonts, Google Tag Manager + 5 more | Find emails |
| antagonist.nl | #54,259 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| fahrrad-xxl.de | #54,274 | AB Tasty, Apache, CCM19 + 5 more | Find emails |
| onepetro.org | #54,281 | Azure DNS, 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 →