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 |
|---|---|---|---|
| hmcpolymers.com | #543,463 | AWS WAF, Amazon CloudFront, DigiCert + 1 more | Find emails |
| ladymakeup.com | #544,176 | AWS WAF, Amazon (ACM), Amazon Route 53 + 10 more | Find emails |
| maple.gg | #544,194 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| aerotrader.com | #544,716 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| deboshoek.nl | #544,783 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| stackedaviation.com | #544,838 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| unlimitednsn.com | #546,762 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| logicalincrements.com | #547,133 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| careers.godaddy | #547,165 | Akamai Edge DNS, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| dxfreight.co.uk | #548,268 | AWS WAF, Amazon CloudFront, DigiCert + 1 more | Find emails |
| watchfinder.ro | #549,086 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| trv.lk | #550,016 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| eatitalian.net | #550,154 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| unisportstore.at | #550,303 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| archiportale.com | #551,618 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| deals4tools.com | #551,814 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| horaoficial.cl | #551,859 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| tampaspartans.com | #552,648 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gazetki.pl | #552,733 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| mortgagelenderscomparison.com | #552,745 | AWS WAF, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| pg66.com | #553,723 | ASP.NET, Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| stotles.com | #553,821 | AWS Lambda, Amazon (ACM), Amazon CloudFront + 12 more | Find emails |
| heyblu.ro | #554,187 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| statutelaw.gov.uk | #555,181 | AWS WAF, Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| centurionservice.com | #555,557 | AWS WAF, Amazon CloudFront, Azure DNS + 15 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 →