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 |
|---|---|---|---|
| boohooman.com | #32,803 | AB Tasty, Amazon (ACM), Amazon CloudFront + 3 more | Find emails |
| devonlive.com | #32,830 | AWS WAF, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| ulifestyle.com.hk | #32,884 | AWS WAF, Amazon (ACM), Amazon CloudFront + 20 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| cpasitesolutions.com | #33,003 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| gem.app | #33,012 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| enbw.com | #33,113 | Amazon CloudFront, Awin, Azure API Management + 13 more | Find emails |
| mylondon.news | #33,141 | AWS WAF, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| the-saleroom.com | #33,179 | ASP.NET, Amazon (ACM), Amazon CloudFront + 13 more | Find emails |
| fantasticfiction.com | #33,263 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| football.london | #33,284 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| litcharts.com | #33,350 | AWS WAF, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| transfermarkt.fr | #33,368 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| storyblocks.com | #33,410 | Amazon (ACM), Amazon Route 53, Builder.io + 9 more | Find emails |
| transfermarkt.de | #33,682 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| knack.be | #34,054 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| ukcop26.org | #34,154 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| binance.bh | #34,267 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| mydigitalpublication.com | #34,782 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| beslist.nl | #34,842 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| thirteen.org | #34,916 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| at-s.com | #34,959 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| cycletrader.com | #35,127 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| gooddog.com | #35,132 | Amazon (ACM), Amazon Route 53, Google Analytics + 7 more | Find emails |
| chessgames.com | #35,524 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| playhq.com | #35,653 | 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 →