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 |
|---|---|---|---|
| clubavolta.com | #255,636 | AWS WAF, Adobe Experience Cloud (Launch), Akamai Edge DNS + 7 more | Find emails |
| azubi.de | #255,826 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| natuurenbos.be | #256,707 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| dok-leipzig.de | #257,030 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| obitsarchive.com | #257,065 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| orbitnsn.com | #257,699 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| watchfinder.com | #257,736 | AWS WAF, Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| vectis.co.uk | #257,801 | AWS WAF, Amazon (ACM), Amazon Web Services + 2 more | Find emails |
| perfectforweddings.com | #257,881 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| surgeaerospace.com | #258,659 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| bettertrips.com | #258,789 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| expansiveprocurement.com | #259,268 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| newrow.com | #259,496 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| asapintegrateddistribution.com | #259,687 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| cpacharge.com | #259,734 | AWS WAF, Amazon Route 53, Astro + 10 more | Find emails |
| nas.gov.sg | #259,809 | AWS WAF, Akamai Edge DNS, Amazon (ACM) + 1 more | Find emails |
| hometap.com | #259,921 | Amazon Route 53, Cloudflare edge/CDN, Django + 11 more | Find emails |
| hospitalsafetygrade.org | #259,995 | Amazon (ACM), Apache, Font Awesome + 9 more | Find emails |
| audioplugin.deals | #260,004 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| ssb-ag.de | #260,438 | AWS WAF, Amazon Web Services, Microsoft 365 + 1 more | Find emails |
| vilbli.no | #260,536 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| nsnpartsworld.com | #260,840 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| dilutiontracker.com | #260,907 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| cogentsourcing.com | #260,962 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| visiondirect.com.au | #261,108 | 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 →