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 |
|---|---|---|---|
| iconicauctioneers.com | #332,770 | AWS WAF, Amazon (ACM), Amazon Web Services + 2 more | Find emails |
| planna.co | #333,493 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| buymilitaryfasteners.com | #333,519 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| toyotacertified.com | #333,705 | Amazon (ACM), Amazon CloudFront, Fastly | Find emails |
| bloodworksnw.org | #333,946 | AWS WAF, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| ukelectricalsupplies.com | #333,973 | AWS WAF, Amazon (ACM), Amazon Route 53 + 4 more | Find emails |
| writework.com | #334,022 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| hotala.com.au | #334,075 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| ncssm.edu | #334,181 | AWS WAF, Amazon Web Services, Let's Encrypt | Find emails |
| dofus-touch.com | #334,235 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| smartbuyglasses.ca | #334,407 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| grautogallery.com | #334,522 | AWS WAF, Amazon Web Services, GoDaddy | Find emails |
| casai.ca | #334,865 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| aerospacepurchasing.com | #335,500 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| new88ad.ink | #335,518 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| sfagentjobs.com | #335,920 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| tonerpartner.de | #335,949 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| theraplatform.com | #336,307 | AWS WAF, Ahrefs Analytics, Amazon (ACM) + 19 more | Find emails |
| stihl.com.br | #336,314 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| datalegal.fr | #336,890 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| pressxchange.com | #336,892 | ASP.NET, Amazon (ACM), Amazon Route 53 + 14 more | Find emails |
| forenom.com | #337,516 | AddToAny, Amazon (ACM), Amazon CloudFront + 11 more | Find emails |
| canadaswonderland.com | #337,639 | AB Tasty, Amazon Route 53, Google Tag Manager + 7 more | Find emails |
| goodmolecules.com | #338,214 | AWS WAF, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| watchfinder.bg | #338,217 | AWS WAF, 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 →