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.
Other captcha & bot protection
| # | 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 |
|---|---|---|---|
| betsson.gr | #76,713 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| sskamo.co.jp | #76,866 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| adticket.de | #76,876 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| femina.fr | #77,124 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| stockton.edu | #77,271 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| fundrise.com | #77,625 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| eventbrite.sg | #78,002 | AB Tasty, AWS WAF, Amazon (ACM) + 19 more | Find emails |
| bedroomvillas.com | #78,026 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gwr.com | #78,097 | AWS WAF, Amazon CloudFront, CSC (Digital Brand Services) + 1 more | Find emails |
| generasimaju.co.id | #78,132 | AWS WAF, Amazon Route 53, Amazon Web Services + 1 more | Find emails |
| betsafe.pe | #78,163 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| vigloo.com | #78,409 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| akjournals.com | #78,414 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| buscadordizerodireito.com.br | #78,589 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| adzuna.co.za | #78,698 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| rougegorge.com | #79,347 | AWS WAF, Amazon CloudFront, Sectigo | Find emails |
| madridsecreto.co | #79,640 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| ajtmh.org | #79,641 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| familywatchdog.us | #79,723 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| gamedeals.io | #80,320 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| essexlive.news | #80,396 | AWS WAF, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| anglers.jp | #80,972 | AWS WAF, Cloudflare, Cloudflare Web Analytics + 2 more | Find emails |
| absolventa.de | #81,047 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| business-live.co.uk | #81,060 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| tt88.zip | #81,265 | ASP.NET, 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 →