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 |
|---|---|---|---|
| asapaviationservices.com | #902,985 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| wattsauctions.co.uk | #903,525 | AWS WAF, Amazon CloudFront, Apache + 13 more | Find emails |
| hardwaredispatch.com | #904,674 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| binancecnt.com | #904,690 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| bookingboosters.nl | #905,377 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| dorneypark.com | #905,495 | AB Tasty, Amazon Route 53, Google Tag Manager + 7 more | Find emails |
| andersonislandliving.com | #906,081 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| parkrun.us | #906,670 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| crowngreen-official-casino.net | #907,447 | Amazon CloudFront, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| almashhad.tv | #907,618 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| woolleyandwallis.co.uk | #907,744 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| foodtravelturk.com | #907,770 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| catalogueoffers.com.au | #908,101 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| worldsoffun.com | #908,268 | AB Tasty, Amazon Route 53, Google Tag Manager + 7 more | Find emails |
| villakanaya.com | #908,914 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| villa-bay.com | #909,178 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| soccernet.com | #909,336 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| electropedia.org | #909,376 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| onepassselect.com | #910,861 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| hotelsinsaopaulo.net | #911,311 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| europeanvisits.com | #911,569 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| theislandsadvisors.com | #912,137 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| stay30.com | #912,621 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| watchfinder.mt | #912,902 | AWS WAF, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| kbhbilleder.dk | #913,971 | 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 →