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 |
|---|---|---|---|
| pferde.de | #327,312 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| insulationsuperstore.co.uk | #327,396 | AWS WAF, Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| thinger.io | #327,447 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| boostaog.com | #327,516 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| azstatejobs.gov | #328,376 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| legislation.govt.nz | #328,632 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| am.pictet | #328,871 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| raywhite.co.nz | #328,876 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| mycnajobs.com | #329,388 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| adinstruments.com | #329,432 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| usports.ca | #329,459 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| buycommercialjetparts.com | #329,614 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| ncrec.gov | #329,615 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| destination2.co.uk | #330,316 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| expansiveaviation.com | #330,340 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| shbetv7.top | #330,419 | ASP.NET, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| courtrec.com | #330,502 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| oakhousefoods.co.uk | #331,232 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| biotus.uz | #331,605 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| casai.uk | #331,682 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| salonkee.ch | #332,073 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| lanyon.com | #332,089 | 6sense, Adobe Experience Cloud (Launch), Amazon (ACM) + 16 more | Find emails |
| town360.jp | #332,410 | AWS WAF, Amazon (ACM), Amazon CloudFront + 12 more | Find emails |
| greatamericaninc.com | #332,468 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| carowinds.com | #332,687 | AB Tasty, Amazon Route 53, Google Tag Manager + 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 →