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 |
|---|---|---|---|
| mysterygames.co | #720,308 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| safira.com.br | #720,517 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| connevans.co.uk | #721,028 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| partyrock.aws | #721,902 | Amazon (ACM), Amazon API Gateway, Amazon CloudFront + 3 more | Find emails |
| deals4games.com | #721,980 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| lot.pl | #722,095 | Adform, Adobe Advertising Cloud, Adobe Analytics + 29 more | Find emails |
| slotsi.com | #722,131 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| vacationpirate.com | #722,220 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| joinmyquiz.com | #723,967 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| seaturtlevilla.com | #724,250 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| back-door.it | #725,461 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| coolgames.app | #726,209 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| ok36539.vip | #726,654 | ASP.NET, Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| peekapps.io | #726,695 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| primeone.com.ph | #726,730 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| bookdelivery.at | #727,520 | Amazon (ACM), Amazon Route 53, Google Identity Services + 3 more | Find emails |
| scacsports.com | #727,908 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| dallascountyvotes.org | #728,059 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| cambridgeunited.com | #728,182 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| fingerlakespropertyrentals.com | #728,225 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| hufriedygroup.com | #728,448 | AWS WAF, Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| gael.be | #728,561 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gamesonclearance.com | #728,711 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| literature-map.com | #728,775 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| securityclearedjobs.com | #728,795 | AWS WAF, Adobe Fonts (Typekit), Amazon (ACM) + 8 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 →