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 |
|---|---|---|---|
| mb66a3.com | #709,104 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| vilgain.hu | #709,386 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| viniou.com | #709,491 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| asiahotelvn.com |
| #709,586 |
| AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more |
| Find emails |
| pigeonbaycottages.com | #709,778 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| guidefororlando.com | #709,864 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| century21numberone.com | #709,922 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| dechra.com | #710,643 | Amazon CloudFront, CSC (Digital Brand Services), Font Awesome + 5 more | Find emails |
| klarna.se | #711,907 | AWS WAF, Akamai Edge DNS, Amazon (ACM) + 1 more | Find emails |
| joblift.co.uk | #712,109 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| imagendelgolfo.mx | #712,279 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| buymilitaryspares.com | #712,674 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| newmediacampaigns.com | #713,075 | AWS WAF, Cloudflare, Cloudflare edge/CDN + 1 more | Find emails |
| oculosworld.com.pt | #713,868 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| kfeducation.com | #714,115 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| rojadirecta.me | #714,192 | AWS WAF, Amazon Web Services | Find emails |
| bonuscred.com.br | #714,414 | AWS WAF, Amazon (ACM), Amazon Route 53 + 11 more | Find emails |
| easylounge.com | #715,160 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| glwd.org | #715,244 | AWS WAF, Amazon Web Services, Cloudflare + 2 more | Find emails |
| cdf.cl | #716,125 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| c21grenada.com | #716,369 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| betterfutureawards.com | #717,051 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| aircraftforsale.com | #717,831 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| mofa.gov.bh | #718,577 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| music-credit.com | #720,299 | AWS WAF, Amazon (ACM), Amazon CloudFront + 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 →