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 |
|---|---|---|---|
| listvt.com | #956,198 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| longbeachfiji.com | #956,473 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| northantslive.news | #956,826 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| floridarentalvacations.com | #957,070 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| glasgowhotelstoday.com | #957,321 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| smartbuyglasses.ae | #959,152 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| payapps.com | #961,260 | Amazon CloudFront, Amazon Route 53, Cloudflare Bot Management + 18 more | Find emails |
| majdic.at | #962,049 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| vip98win.club | #962,513 | ASP.NET, Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| culturalvistas.org | #962,795 | AWS WAF, Amazon Web Services, Let's Encrypt + 2 more | Find emails |
| unlimitedpurchasing.com | #962,940 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| psaparts.co.uk | #963,015 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| susi.cash | #963,407 | ASP.NET, Amazon (ACM), Amazon CloudFront + 13 more | Find emails |
| glsed.co.uk | #963,839 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| thevoyagetravels.com | #964,095 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| groove3.com | #966,073 | Adobe Fonts (Typekit), Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| azrattlers.com | #966,621 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| unigo.ac.id | #966,803 | AWS WAF, Bootstrap, Cloudflare + 11 more | Find emails |
| watchfinder.si | #966,808 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| exploreandgomexico.com | #966,927 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| florencevacationrental.com | #967,195 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gnod.com | #967,472 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| onedegreestays.com | #968,258 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| renatovillas.com | #970,793 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| nyc-arts.org | #971,633 | AWS WAF, Amazon (ACM), Amazon CloudFront | 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 →