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 |
|---|---|---|---|
| genieai.co | #205,169 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| asapaog.com | #206,214 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| buynsnparts.com | #206,499 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| #206,615 |
| AWS WAF, Amazon (ACM), Amazon Web Services |
| Find emails |
| limitlesspurchasing.com | #206,791 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| eventpeppers.com | #206,844 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| researchprotocols.org | #206,890 | Amazon (ACM), Amazon Route 53, Font Awesome + 7 more | Find emails |
| rsca.be | #207,000 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| aerospace3sixty.com | #207,385 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| inspirock.com | #207,949 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gameapps.guru | #208,002 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| kace.com | #208,299 | AWS WAF, Amazon CloudFront, Azure DNS + 1 more | Find emails |
| atlas.md | #208,363 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| fnx.co.il | #208,885 | Amazon (ACM), Amazon CloudFront, Google Tag Manager + 2 more | Find emails |
| eventbrite.se | #208,944 | AWS WAF, Amazon (ACM), Amazon CloudFront + 18 more | Find emails |
| spotlightessentials.com | #209,167 | AWS WAF, Amazon CloudFront, Azure DNS + 1 more | Find emails |
| lawsonshop.co.uk | #209,452 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| zippypurchasing.com | #209,544 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| food4rhino.com | #209,554 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| automatizeprocurement.com | #209,961 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| babycenter.ca | #209,967 | AWS WAF, Amazon Route 53, Sectigo | Find emails |
| jobs.wa.gov.au | #210,093 | Amazon (ACM), Amazon CloudFront, Azure DNS + 11 more | Find emails |
| aviationgamut.com | #210,404 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| 33win8.com | #210,585 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| 33win93.com | #210,586 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 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 →