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 |
|---|---|---|---|
| vip397.com | #375,585 | ASP.NET, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| new88af.ink | #375,587 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| prixtel.com | #375,633 | AWS WAF, AddToAny, Amazon (ACM) + 11 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| thensndistributor.com |
| #375,773 |
| AWS WAF, Amazon (ACM), Amazon Web Services |
| Find emails |
| 123ink.ca | #376,087 | AWS WAF, Amazon Route 53, Amazon Web Services | Find emails |
| playmarket.com | #376,147 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| oncewed.com | #376,171 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| pbsanimalhealth.com | #376,185 | ASP.NET, Amazon CloudFront, Cloudflare + 6 more | Find emails |
| chessarena.com | #376,368 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| slotsonlinecanada.com | #377,766 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| soyfutbol.com | #378,910 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| melodics.com | #378,968 | Amazon CloudFront, Amazon S3, Google Ads Conversion + 10 more | Find emails |
| bedroomvillas.ca | #379,254 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| reifen-groessen.de | #380,572 | Amazon (ACM), Amazon Route 53, Google Analytics + 2 more | Find emails |
| secretsanfrancisco.com | #380,731 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| eventbrite.cl | #381,113 | AWS WAF, Amazon (ACM), Amazon CloudFront + 18 more | Find emails |
| ochre.store | #381,238 | AWS WAF, Cloudflare, Let's Encrypt + 1 more | Find emails |
| broadwayacrossamerica.com | #382,070 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| adzuna.co.nz | #382,316 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| responsiblevacation.com | #382,632 | Amazon (ACM), Amazon Route 53, Bootstrap + 10 more | Find emails |
| zdrofit.pl | #382,656 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| toagroup.com | #383,313 | AWS WAF, Amazon CloudFront, Cloudflare + 2 more | Find emails |
| new8831.cc | #383,578 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| jukunavi.com | #384,146 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| pasonacareer.jp | #384,310 | AWS WAF, Amazon Web Services | 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 →