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 |
|---|---|---|---|
| hypebeast.kr | #494,949 | AWS WAF, Adobe Fonts, Adobe Fonts (Typekit) + 12 more | Find emails |
| pipestock.com | #495,060 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| aviatorgear.com | #496,133 | ASP.NET, Amazon (ACM), Amazon Route 53 + 15 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| aerospares360.com | #496,358 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| williamhillplc.com | #496,747 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| pagamo.org | #496,840 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| colombo.pt | #497,118 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| thiscityknows.com | #497,133 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| purchasing-orbit.com | #497,341 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| commitforlife.org | #497,713 | AWS WAF, Amazon Web Services, Microsoft 365 + 1 more | Find emails |
| coyoteclassics.com | #498,061 | AWS WAF, Amazon Web Services, Proton Mail + 1 more | Find emails |
| ackersate.nl | #499,530 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| smartbuyglasses.de | #500,572 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| freebie-ac.jp | #500,646 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| stihl.pl | #500,782 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| molke.nl | #500,827 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| llantasneumaticos.com | #500,945 | Amazon (ACM), Amazon Route 53, Google Analytics + 2 more | Find emails |
| investeurope.eu | #501,167 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| beerzebulten.nl | #501,185 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| stihl.at | #501,763 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| sharps.co.uk | #503,160 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| methodicalpurchasing.com | #504,211 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| manga10.com | #504,521 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| halegroves.com | #504,926 | ASP.NET, Adobe Fonts, Adobe Fonts (Typekit) + 6 more | Find emails |
| alliancenational.co.uk | #506,087 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | 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 →