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 |
|---|---|---|---|
| kotaklife.com | #136,658 | AWS WAF, Akamai Edge DNS, Amazon CloudFront + 1 more | Find emails |
| shoa.cl | #136,956 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| kurashinista.jp | #137,179 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| kw.be | #137,697 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| eventbrite.com.mx | #137,738 | AWS WAF, Amazon (ACM), Amazon CloudFront + 18 more | Find emails |
| europarcs.nl | #137,759 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| lonelyplanet.fr | #137,812 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| transfermarkt.gr | #138,096 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| steepandcheap.com | #138,525 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| filmboards.com | #139,131 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| asharqbusiness.com | #139,147 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| eventbrite.co.nz | #139,531 | AWS WAF, Amazon (ACM), Amazon CloudFront + 19 more | Find emails |
| rockethomes.com | #139,602 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| sannichi.co.jp | #139,755 | AWS WAF, Amazon CloudFront, Apache + 6 more | Find emails |
| clarityelections.com | #140,141 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| robloxgo.com | #140,586 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| rxspark.com | #140,664 | AWS WAF, Amazon (ACM), Amazon Route 53 + 6 more | Find emails |
| stubhub.ca | #140,675 | Affirm, Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| honeyfund.com | #140,884 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| nsnpartshub.com | #141,178 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| pdpc.gov.sg | #141,435 | AWS WAF, Akamai Edge DNS, Amazon (ACM) + 1 more | Find emails |
| cventevents.com | #141,454 | 6sense, Adobe Experience Cloud (Launch), Amazon (ACM) + 16 more | Find emails |
| damacproperties.com | #141,636 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| nordicbet.com | #141,820 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| plusonline.nl | #142,008 | 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 →