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 |
|---|---|---|---|
| youramys.com | #971,921 | Cloudflare, Cloudflare edge/CDN, Criteo + 5 more | Find emails |
| stihl.co.jp | #971,947 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| biotus.md | #973,125 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| theathletesfoot.com.kw |
| #973,174 |
| AWS WAF, Amazon (ACM), Amazon Web Services |
| Find emails |
| ak-pool.com | #973,872 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| watchfinder.hu | #974,111 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| trippyowl.com | #974,689 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| himalayangreencottage.com | #975,277 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| cruiseandresorts.com | #975,702 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| bodegabayrentals.com | #975,839 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| fasteners-360.com | #977,261 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| aviationpartssales.com | #978,446 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| toberuaisland.com | #978,455 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| onlinedigeditions.com | #978,903 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| kidneynews.org | #979,123 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| electricfetus.com | #981,098 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| abacobahamasrental.com | #981,558 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| populationmedia.org | #982,256 | AWS WAF, Cloudflare, Cloudflare Web Analytics + 3 more | Find emails |
| evenium.net | #982,835 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| watchfinder.dk | #982,869 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| ibisworld.com.au | #984,941 | AWS WAF, Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| midwestsports.com | #985,018 | AWS WAF, Amazon CloudFront, Cloudflare + 2 more | Find emails |
| dorset.live | #985,806 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| asap-nsnparts.us | #985,967 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| rivercottageslovenia.com | #986,561 | 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 →