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 |
|---|---|---|---|
| bespokeusatravel.com | #444,996 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| stearnsandfoster.com | #445,917 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| neon.markets | #445,996 | AWS WAF, Amazon Route 53, Amazon Web Services | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| mibolsillo.com |
| #447,812 |
| AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more |
| Find emails |
| makotoweb.com | #448,014 | AWS WAF, Amazon CloudFront, Amazon Route 53 | Find emails |
| syslog-ng.com | #448,809 | AWS WAF, Amazon CloudFront, Azure DNS + 1 more | Find emails |
| myaifrontdesk.com | #449,653 | Ahrefs Analytics, Amazon CloudFront, Ashby + 17 more | Find emails |
| fashiola.pt | #449,719 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| adelaidefestivalcentre.com.au | #449,721 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| cuisineathome.com | #450,433 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| tnews.jp | #450,973 | AWS WAF, Amazon Route 53, DigiCert | Find emails |
| asapdefenseparts.com | #452,331 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| hotelrasika.com | #452,622 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| boardgameprices.co.uk | #452,631 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| apex.aero | #452,899 | AddThis, Adobe Fonts (Typekit), Amazon CloudFront + 27 more | Find emails |
| britishmedicalauctions.co.uk | #453,207 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| soycarmin.com | #453,914 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| schlitterbahn.com | #454,366 | AB Tasty, Amazon Route 53, Google Tag Manager + 7 more | Find emails |
| hsbc.com.mt | #455,040 | Adobe Experience Manager Edge Delivery (Helix RUM), Amazon CloudFront, Apache + 4 more | Find emails |
| kudosnow.com | #455,145 | AWS Lambda, AWS WAF, Amazon CloudFront + 18 more | Find emails |
| warehousefashion.com | #455,228 | AB Tasty, Amazon (ACM), Amazon CloudFront + 3 more | Find emails |
| travelist.co.il | #455,346 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| bidmycity.com | #455,360 | AWS WAF, Adobe Fonts, Adobe Fonts (Typekit) + 8 more | Find emails |
| naughtyamericavr.com | #455,916 | AWS WAF, Amazon Route 53, Amazon Web Services | Find emails |
| dreweatts.com | #456,145 | Cloudflare, Dynatrace, Google Analytics + 9 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 →