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 |
|---|---|---|---|
| tkor112.com | #26,232 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| heartland.us | #26,258 | Cloudflare Bot Management, Cloudflare edge/CDN, Sectigo | Find emails |
| historicengland.org.uk | #26,259 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| winfuture.de | #26,275 | Bluesky, Chartbeat, Cloudflare + 16 more | Find emails |
| onfido.com | #26,316 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| api-sports.io | #26,345 | API-Sports, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| almayadeen.net | #26,351 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| bitvavo.com | #26,365 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| scielo.cl | #26,378 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| atman.pl | #26,405 | AOS, Bluesky, Bootstrap + 14 more | Find emails |
| moneyhelper.org.uk | #26,455 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| cites.org | #26,474 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| npg.org.uk | #26,479 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| webhostinghub.com | #26,494 | Font Awesome, Google Ads Conversion, Google Analytics + 15 more | Find emails |
| virtualdj.com | #26,496 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| flir.com | #26,499 | Amazon CloudFront, Amazon S3, Azure API Management + 12 more | Find emails |
| pewforum.org | #26,509 | Amazon Route 53, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| optifine.net | #26,541 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| moph.go.th | #26,556 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert | Find emails |
| linkfire.com | #26,566 | AOS, ASP.NET, Amazon CloudFront + 12 more | Find emails |
| religionnews.com | #26,581 | Bluesky, ClickTale (Contentsquare), Cloudflare + 12 more | Find emails |
| navan.com | #26,596 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 11 more | Find emails |
| parisjetaime.com | #26,627 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| ipsy.com | #26,640 | Amazon (ACM), Amazon Route 53, Bazaarvoice + 14 more | Find emails |
| arkansasonline.com | #26,647 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 11 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 →