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 |
|---|---|---|---|
| wsg.gov.sg | #506,309 | AWS WAF, Akamai Edge DNS, Amazon (ACM) + 1 more | Find emails |
| sfbos.org | #506,384 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| purchasensnparts.com | #507,234 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| crowngreen-casino-login.com |
| #507,685 |
| Amazon CloudFront, Cloudflare, Cloudflare Web Analytics + 9 more |
| Find emails |
| cifstate.org | #507,725 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| jinzaibank.com | #508,733 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| crowngreen-login.com | #509,173 | Amazon CloudFront, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| heat.gov | #509,338 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| taille-pneu.com | #509,433 | Amazon (ACM), Amazon Route 53, Google Analytics + 2 more | Find emails |
| theposh.com | #509,811 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| 21prive.com | #510,081 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| asap-inventory.com | #510,688 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| izquierdazo.com | #510,689 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| alps-rentals.com | #511,093 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| wintersvacationsrentals.com | #511,843 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| whatsmyname.app | #512,204 | Amazon (ACM), Amazon Route 53, Bootstrap + 7 more | Find emails |
| skillbee.com | #512,319 | AWS WAF, Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| hope-education.co.uk | #512,661 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| bitpush.news | #512,744 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| asap-partsonline.com | #513,351 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| cactuslifesciences.com | #513,732 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| fidiumfiber.com | #513,945 | AWS WAF, Amazon Web Services, Sectigo | Find emails |
| flexengage.com | #514,052 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| new-vereinsfoerderung.de | #514,100 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| crowngreencasino1.net | #514,246 | Amazon CloudFront, Cloudflare, Cloudflare Web Analytics + 7 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 →