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 |
|---|---|---|---|
| sportszone.com | #594,114 | AWS WAF, Amazon CloudFront, Amazon Route 53 | Find emails |
| asapintegratedlogistics.com | #594,596 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| ghthotels.com | #595,493 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| sm8.link |
| #595,629 |
| AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more |
| Find emails |
| nsn3sixty.com | #596,028 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| zombiepumpkins.com | #596,081 | AWS WAF, Amazon (ACM), Amazon Route 53 + 9 more | Find emails |
| betsson.mx | #596,907 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| zestmoney.in | #597,662 | AWS WAF, Amazon Route 53, Apache + 15 more | Find emails |
| medsas.co | #600,851 | AWS WAF, Amazon Route 53, Amazon Web Services + 2 more | Find emails |
| nohu.com | #601,165 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| unisportstore.fi | #602,324 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| vilgain.pl | #602,407 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| yourbloodinstitute.org | #602,595 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| oilandgasmiddleeast.com | #603,537 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| crown-green-casino-ca.net | #604,079 | Amazon CloudFront, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| calo.app | #604,189 | Amazon Route 53, Let's Encrypt, Next.js + 4 more | Find emails |
| oculosworld.com.br | #604,293 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| soccer-history.com | #604,684 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| nighttravels.com | #604,872 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| hotala.es | #605,068 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| bluefireinsurance.com | #606,028 | AWS WAF, Amazon Web Services, GoDaddy | Find emails |
| 3mmoo.com | #606,477 | ASP.NET, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| nsnopolis.com | #607,167 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| biotus.ge | #607,660 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| mb665.zone | #607,672 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 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 →