CAPTCHA & Bot Protection
90,376 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9%). Google's CAPTCHA/bot-scoring widget, the most widely deployed CAPTCHA by far. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | apache.org | #125 (Tranco) | Find emails |
| 3 | one.one | #160 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| givelively.org | #41,839 | AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 12 more | Find emails |
| bidspotter.com | #41,893 | ASP.NET, Amazon (ACM), Amazon CloudFront + 17 more | Find emails |
| ddoscure.com | #41,895 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| thefappeningblog.com | #41,902 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 5 more | Find emails |
| practicefusion.com | #41,920 | Adobe Audience Manager, Amazon (ACM), Amazon CloudFront + 35 more | Find emails |
| proximic.com | #41,927 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| notionpress.com | #41,950 | Amazon Route 53, Apache, Bootstrap + 19 more | Find emails |
| catcar.info | #41,988 | Cloudflare, Google AdSense, Google Analytics + 7 more | Find emails |
| palm.com | #42,020 | CSC (Digital Brand Services), Cloudflare edge/CDN, Let's Encrypt + 3 more | Find emails |
| thelondonneurocognitiveclinic.co.uk | #42,022 | Apache, Google Analytics, Google Fonts + 5 more | Find emails |
| gmfinancial.com | #42,067 | Adobe Experience Cloud (Launch), DigiCert, Fastly + 5 more | Find emails |
| pinknews.co.uk | #42,069 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 13 more | Find emails |
| corcoran.com | #42,078 | Amazon CloudFront, Amazon Route 53, Bootstrap + 9 more | Find emails |
| gazeta.uz | #42,083 | Cloudflare, Google Tag Manager, Google Workspace + 6 more | Find emails |
| porndoe.com | #42,085 | Cloudflare, Google Analytics, Google Fonts + 5 more | Find emails |
| fentybeauty.com | #42,089 | Akamai Edge DNS, Attentive, Clarip + 8 more | Find emails |
| veniceai-status.com | #42,098 | Amazon CloudFront, Atlassian Statuspage, Cloudflare + 5 more | Find emails |
| bienpublic.com | #42,102 | ConsentMo, Didomi, DigiCert + 2 more | Find emails |
| netgalley.com | #42,148 | Amazon (ACM), Amazon API Gateway, Amazon CloudFront + 6 more | Find emails |
| onlinegdb.com | #42,160 | Bootstrap, Cloudflare, Cloudflare Turnstile + 18 more | Find emails |
| auctria.com | #42,162 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| itmwpb.com | #42,179 | Amazon (ACM), Amazon Route 53, Bootstrap + 8 more | Find emails |
| wtkr.com | #42,180 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 15 more | Find emails |
| carsdirect.com | #42,181 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 3 more | Find emails |
| enhance.co.jp | #42,198 | All in One SEO, Amazon Route 53, Apache + 8 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →