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 |
|---|---|---|---|
| imagendeveracruz.mx | #671,029 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| edudoc.ch | #671,095 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| stihl.pt | #671,779 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| 79king78.com |
| #671,866 |
| ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more |
| Find emails |
| casilando.com | #672,634 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| cr-support.jp | #672,699 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| sundaymirror.co.uk | #673,416 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| birdwatchingitaly.com | #675,370 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| montgomerycottages.com | #676,051 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| playgrand.com | #676,881 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| freeretro.games | #676,905 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| century21cayman.com | #676,960 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| ccsubluedevils.com | #677,604 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| silverstoneauctions.com | #677,627 | AWS WAF, Amazon (ACM), Amazon Web Services + 2 more | Find emails |
| tribunnewswiki.com | #678,001 | AWS WAF, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| timeoutriyadh.com | #678,049 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| 9mmoo.com | #678,385 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| parkrun.co.nz | #678,604 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| berkenrhode.nl | #680,660 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| russlyon.com | #680,744 | AWS WAF, Amazon Web Services, Cloudflare + 1 more | Find emails |
| cricaza247.com | #681,743 | AWS WAF, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| lyonsecret.com | #681,826 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| fashiola.mx | #682,622 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| defenceiq.com | #684,830 | AWS WAF, Amazon (ACM), Amazon Route 53 | Find emails |
| constructionsales.com.au | #685,147 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon CloudFront + 11 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 →