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 |
|---|---|---|---|
| zipcar.com | #46,683 | AddToAny, Amazon Route 53, Cloudflare Bot Management + 13 more | Find emails |
| sexiitrina.com | #46,687 | Awin, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| cinehd.app | #46,695 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| criticalcase.com | #46,699 | Apache, Font Awesome, Google Fonts + 5 more | Find emails |
| wheaton.edu | #46,705 | Cloudflare Bot Management, Cloudflare edge/CDN, Let's Encrypt + 1 more | Find emails |
| knifecenter.com | #46,709 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| mhmedical.com | #46,719 | Cloudflare Bot Management, Cloudflare edge/CDN, Let's Encrypt | Find emails |
| csgoroll.com | #46,720 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| kiehls.com | #46,743 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| u-buy.jp | #46,810 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| voices.com | #46,815 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| device.report | #46,871 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| orbea.com | #46,900 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| sunset.com | #46,904 | Cloudflare, Google Fonts, Let's Encrypt + 4 more | Find emails |
| baginya.org | #46,905 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| iplogger.org | #46,913 | BuySellAds, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| transitchicago.com | #46,919 | Cloudflare Bot Management, Cloudflare edge/CDN, Microsoft 365 | Find emails |
| notino.pl | #46,921 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| untirta.ac.id | #46,930 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| v2ph.com | #46,947 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| moneywise.com | #46,959 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| washtimes.com | #46,974 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| pdfescape.com | #46,980 | ASP.NET, Amazon Route 53, Cloudflare Bot Management + 9 more | Find emails |
| torrentbay.st | #46,989 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| invisioncommunity.com | #47,005 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | 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 →