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.
Other captcha & bot protection
| # | 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 |
|---|---|---|---|
| vettix.org | #35,686 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 15 more | Find emails |
| gobound.com | #35,731 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| editorialist.com | #35,797 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| livepocket.jp | #35,961 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| pricerunner.com | #36,011 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| uwinnipeg.ca | #36,065 | AWS WAF, Amazon Web Services | Find emails |
| cellartracker.com | #36,354 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| bookfinder.com | #36,622 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| resume.io | #36,766 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| ebizautos.com | #37,056 | AWS WAF, Amazon CloudFront, Apache + 7 more | Find emails |
| izi.travel | #37,142 | Amazon CloudFront, Amazon Route 53, Drupal + 12 more | Find emails |
| speedwaymotors.com | #37,155 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| lancers.jp | #37,411 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| townwork.net | #37,419 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| theportugalnews.com | #37,447 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| kompas.tv | #37,471 | AWS WAF, Amazon CloudFront, Cloudflare + 14 more | Find emails |
| nlb.gov.sg | #37,565 | AWS WAF, Akamai Edge DNS, Amazon (ACM) + 1 more | Find emails |
| stuvia.com | #38,066 | AWS WAF, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| aisnet.org | #38,078 | ASP.NET, Amazon CloudFront, Amazon S3 + 26 more | Find emails |
| i-bidder.com | #38,226 | ASP.NET, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| elgaronline.com | #38,329 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| eventbrite.ie | #38,330 | AWS WAF, Amazon (ACM), Amazon CloudFront + 19 more | Find emails |
| theceshop.com | #38,382 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| sfgov.org | #38,386 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| bnm.gov.my | #38,448 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 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 →