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 |
|---|---|---|---|
| transfermarkt.es | #9,705 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| 79king1.com | #9,788 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| playinmatch99.com | #9,983 | AWS WAF, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| instamatch365.com | #10,071 | Amazon (ACM), Amazon Route 53, Apache + 7 more | Find emails |
| bricodepot.fr | #10,072 | AWS WAF, Amazon CloudFront | Find emails |
| 1x247.net | #10,186 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| playinhorse.com | #10,252 | AWS WAF, Cloudflare, Cloudflare edge/CDN + 1 more | Find emails |
| funinhorse.com | #10,268 | AWS WAF, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| funinjeet.com | #10,269 | AWS WAF, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| funinrace360.com | #10,270 | AWS WAF, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| funinrace365.com | #10,271 | AWS WAF, Cloudflare, Cloudflare Bot Management + 2 more | Find emails |
| ballotpedia.org | #10,770 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| playkaro365.com | #10,898 | Amazon (ACM), Amazon Route 53, Apache + 14 more | Find emails |
| dailyrecord.co.uk | #11,065 | AWS WAF, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| brill.com | #11,139 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| eventbrite.ca | #11,140 | AWS WAF, Amazon (ACM), Amazon CloudFront + 19 more | Find emails |
| hackmd.io | #11,479 | AWS WAF, Amazon (ACM), Amazon Route 53 + 4 more | Find emails |
| etix.com | #11,553 | AWS WAF, Amazon Route 53, Amazon Web Services + 1 more | Find emails |
| iflscience.com | #11,586 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| vietjetair.com | #11,589 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| publico.pt | #11,696 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| jdsupra.com | #11,786 | AWS WAF, Amazon Web Services | Find emails |
| hypebeast.com | #11,807 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| alaska.edu | #11,958 | AOS, Amazon CloudFront, Apache + 14 more | Find emails |
| walesonline.co.uk | #11,994 | AWS WAF, Amazon (ACM), Amazon CloudFront + 16 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 →