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 |
|---|---|---|---|
| ocado.com | #19,920 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| therealdeal.com | #19,957 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| traderepublic.com | #20,032 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| scispace.com | #20,129 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| betsson.com | #20,162 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| eventbrite.com.au | #20,198 | AWS WAF, Amazon (ACM), Amazon CloudFront + 19 more | Find emails |
| rikunabi.com | #20,330 | Adyen, Amazon (ACM), Amazon CloudFront + 17 more | Find emails |
| archiproducts.com | #20,383 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| thecanadianencyclopedia.ca | #20,413 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| jove.com | #20,688 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| adzuna.co.uk | #20,723 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| sportybet.co.za | #21,049 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| betsson.bet.ar | #21,241 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| chileautos.cl | #21,266 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| bolasport.com | #21,319 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| redmas.com.co | #21,360 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| 33win.com | #21,992 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| vignanam.org | #22,215 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| nohu90.com | #22,224 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| funinexchange360.com | #22,261 | AWS WAF, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| actionnetwork.com | #22,624 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| onelogin.com | #22,763 | AWS WAF, Amazon CloudFront, Microsoft 365 + 2 more | Find emails |
| alcopa-auction.fr | #22,796 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| go99.games | #22,833 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| kompasiana.com | #22,865 | AWS WAF, Amazon (ACM), Amazon CloudFront + 8 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 →