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 |
|---|---|---|---|
| garuda-indonesia.com | #37,440 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| cjdropshipping.com | #37,520 | Alibaba Cloud DNS, Alibaba Cloud OSS, Cloudflare Web Analytics + 2 more | Find emails |
| come.to | #37,537 | Cloudflare, Cloudflare edge/CDN, FlagCDN + 5 more | Find emails |
| #176 (Tranco) |
| Find emails |
| 5 | medium.com | #178 (Tranco) | Find emails |
| dhakatribune.com | #37,547 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| armscontrol.org | #37,592 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| picmix.com | #37,626 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| urlz.fr | #37,639 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| deal.by | #37,657 | Cloudflare Bot Management, Cloudflare edge/CDN, Express + 5 more | Find emails |
| nicnames.com | #37,669 | Google Tag Manager, Meta Pixel, Microsoft Clarity + 4 more | Find emails |
| replacements.com | #37,679 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| servicem8.com | #37,687 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 16 more | Find emails |
| myhost.nz | #37,700 | Bluesky, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| realtyww.info | #37,705 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 14 more | Find emails |
| cineworld.co.uk | #37,714 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| gpk.eu | #37,730 | Cloudflare Bot Management, Cloudflare edge/CDN, Sectigo | Find emails |
| southbankcentre.co.uk | #37,788 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| lexsynergy.com | #37,801 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services | Find emails |
| cosmosmagazine.com | #37,807 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| cepr.net | #37,814 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| peacecorps.gov | #37,828 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| metronieuws.nl | #37,846 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| paysera.com | #37,849 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| openreplay.com | #37,860 | Ahrefs Analytics, Algolia, Amazon (ACM) + 11 more | Find emails |
| rockwellcollins.com | #37,865 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| scienceopen.com | #37,874 | Cloudflare, 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 →