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 |
|---|---|---|---|
| bestonlinebankingaccounts.com | #555,562 | AWS WAF, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| hampshirelive.news | #555,829 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| c-spanarchives.org | #556,247 | 33Across, Adingo, Amazon (ACM) + 41 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| itp.com | #557,001 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| pridecounseling.com | #557,725 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| enjoyrendlake.com | #558,884 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| prostudiomasters.com | #558,990 | Amazon (ACM), Amazon Route 53, Apache + 8 more | Find emails |
| fischerelektronik.de | #559,018 | AWS WAF, Amazon Web Services, Let's Encrypt | Find emails |
| fickpension.com | #559,611 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| 789bettg.net | #559,676 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| villacollege.edu.mv | #560,265 | AWS WAF, Amazon CloudFront, Font Awesome + 7 more | Find emails |
| toplinecontentmarketing.com | #560,866 | AWS WAF, Amazon (ACM), Amazon Web Services + 2 more | Find emails |
| cityline.com.hk | #561,351 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| swimmer.com.au | #561,665 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| modulrfinance.com | #561,680 | 6sense, AOS, AWS WAF + 15 more | Find emails |
| fuel.tv | #561,879 | AWS WAF, Amazon CloudFront, Amazon Route 53 | Find emails |
| findnsn.com | #562,310 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| abhilekh-patal.in | #562,475 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| 99ok.vip | #562,862 | ASP.NET, Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| porchlightgroup.com | #563,482 | Amazon (ACM), Amazon CloudFront, ClickTale (Contentsquare) + 6 more | Find emails |
| backtotheretro.games | #563,516 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| tilibraexpress.com.br | #564,706 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| stihl.com.ar | #564,932 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| parkrun.pl | #565,282 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| csjt.jus.br | #565,471 | 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 →