CAPTCHA & Bot Protection
3,100 of the 1,000,000 top sites in our Tranco top-1M census run AWS WAF CAPTCHA (0.3%). Amazon's CAPTCHA challenge product, part of AWS WAF's bot-mitigation features. Detection is homepage-level HTML/header fingerprinting, so a site can run AWS WAF CAPTCHA on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | amazon.com | #25 (Tranco) | Find emails |
| 2 | imdb.com | #237 (Tranco) | Find emails |
| 3 | appsflyer.com | #302 (Tranco) | Find emails |
| 4 | amazon.co.uk |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| charlesmcmurray.com | #853,350 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| debenhams.co.uk | #853,520 | AB Tasty, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| crowngreenplay.com | #853,742 | Amazon CloudFront, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| workthere.com | #854,973 | ASP.NET, AWS WAF, Amazon (ACM) + 10 more | Find emails |
| rapidpurchasing.com | #855,041 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| salonkee.com | #855,601 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| speedvegas.com | #855,778 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| avspares360.com | #855,995 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| distribution3sixty.com | #858,399 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| caribbeandaily.com | #858,409 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| jallacasino.ee | #858,724 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| apps-4-free.com | #859,227 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| pg66.vip | #859,291 | ASP.NET, Amazon (ACM), Amazon CloudFront + 3 more | Find emails |
| playretro.io | #859,292 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| asapacquire.com | #860,074 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| tourcentraleurope.com | #860,326 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| century21tci.com | #860,997 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| megaboutique.com.au | #861,085 | AWS WAF, Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| southflorida.edu | #861,316 | AWS WAF, Amazon Route 53, Bootstrap + 11 more | Find emails |
| vicat.fr | #862,275 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| flemingsultimategarage.com | #862,390 | AWS WAF, Amazon Web Services, Microsoft 365 | Find emails |
| mtbakercabinrental.com | #862,793 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| thensnmart.com | #863,430 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| lambweston.eu | #863,882 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| integrated-aerospace.com | #864,281 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →