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 |
|---|---|---|---|
| motorplus-online.com | #346,768 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| fashiola.com.au | #347,029 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| check-mot-history.co.uk | #347,114 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| lashawaiianas.com | #347,129 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| vilgain.de | #347,168 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| hi2055.com | #347,876 | ASP.NET, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| broadlineaog.com | #348,030 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| bibliotheksverband.de | #348,865 | AWS WAF, Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| linz.govt.nz | #348,939 | AWS WAF, Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| viagogo.pt | #349,233 | Affirm, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| publicrecords.info | #349,235 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| northamptonsaints.co.uk | #349,240 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| hi2033.com | #349,299 | ASP.NET, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| worldwidevintageautos.com | #349,345 | AWS WAF, Amazon Web Services, Microsoft 365 + 1 more | Find emails |
| sunsethotelmarmaris.com | #349,610 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| ukvisaportal.com | #350,085 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| visitkingsisland.com | #350,145 | AB Tasty, Amazon Route 53, Google Tag Manager + 7 more | Find emails |
| smarttoday.co.kr | #350,223 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| voguecollege.com | #350,244 | AWS WAF, Amazon (ACM), Amazon Route 53 + 4 more | Find emails |
| 118118money.com | #350,334 | AWS WAF, Amazon (ACM), Amazon CloudFront + 17 more | Find emails |
| tonerpartner.be | #350,346 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| eventbrite.com.pe | #351,388 | AWS WAF, Amazon (ACM), Amazon CloudFront + 18 more | Find emails |
| counselingforstudents.com | #351,557 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| nvfc.org | #351,559 | Amazon CloudFront, Amazon S3, Apple Pay + 20 more | Find emails |
| ebten.jp | #351,950 | AWS WAF, Amazon CloudFront, Amazon Route 53 | 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 →