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 |
|---|---|---|---|
| ukcaravans4hire.com | #365,641 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| viagogo.gr | #365,770 | Affirm, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| livingstyles.com.au | #365,781 | AWS WAF, Amazon Web Services, Cloudflare + 2 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| icounseling.com | #366,031 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| fashiola.it | #366,377 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| sjchs.org | #366,432 | ASP.NET, AWS WAF, Amazon Web Services + 5 more | Find emails |
| watchfinder.lt | #366,441 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| watches2u.com | #367,469 | AWS WAF, Amazon (ACM), Apache + 5 more | Find emails |
| boughtbymany.com | #368,465 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| landfx.com | #368,740 | AWS WAF, Cloudflare, Cloudflare Web Analytics + 2 more | Find emails |
| foodpanda.ro | #369,441 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| booklife.com | #369,721 | AdRoll, Adobe Fonts (Typekit), Amazon (ACM) + 17 more | Find emails |
| asapaerospacebearings.com | #369,975 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| atvenu.com | #370,561 | AWS Lambda, AWS WAF, Amazon CloudFront + 10 more | Find emails |
| wintwealth.com | #370,730 | Amazon (ACM), Amazon CloudFront, Google Identity Services + 7 more | Find emails |
| instru.ee | #370,803 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| nsnsphere.com | #370,891 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| vip789betj.com | #371,016 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| transmedics.com | #371,409 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| weski.com | #372,803 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| placemakers.co.nz | #373,317 | AWS WAF, Amazon CloudFront, CSC (Digital Brand Services) + 1 more | Find emails |
| yoopies.fr | #375,105 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gdaycasino.com | #375,126 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| counseling4students.com | #375,308 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| tradethenews.com | #375,522 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 5 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 →