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 |
|---|---|---|---|
| evancy.com | #696,827 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| middlesexccc.com | #697,637 | AWS WAF, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| eleconomista.net | #697,758 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| stihl.cz | #698,076 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| akpool.fr | #698,240 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| resortsvilla.com | #698,589 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| cottagefarmhouse.com | #698,988 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| secretatlanta.co | #699,196 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gamesclearance.club | #699,222 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| data.gov.il | #699,727 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| motordesk.com | #700,704 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| purchasingsphere.com | #700,786 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| aviationdomain360.com | #700,812 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| booktv.org | #701,199 | 33Across, Adingo, Amazon (ACM) + 38 more | Find emails |
| pilotsolution.net | #703,851 | AWS WAF, Amazon (ACM), Amazon CloudFront + 13 more | Find emails |
| watchfinder.pt | #703,993 | AWS WAF, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| nwacsports.com | #704,158 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| 3rd.supply | #704,522 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| sepscience.com | #705,329 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| aviationhardwareworld.com | #705,681 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| justbooks.de | #706,130 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| simplytravelguide.org | #706,413 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| tybaa.com | #708,577 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| 79king.org | #708,693 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| bmwweb.biz | #708,776 | AWS WAF, Amazon Route 53, Amazon Web Services + 1 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 →