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 |
|---|---|---|---|
| globallinker.com | #125,630 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| volocars.com | #125,752 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| malaga.es | #126,097 | AWS WAF, Amazon (ACM), Amazon CloudFront + 3 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| mediastorehouse.com | #126,124 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| petfriendly.io | #126,150 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| propstoreauction.com | #126,207 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| folksy.com | #126,308 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| trados.com | #126,674 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| sofort.com | #126,692 | AWS WAF, Akamai Edge DNS, Amazon (ACM) + 1 more | Find emails |
| soticonnect.cloud | #127,786 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| lbhf.gov.uk | #128,007 | AWS WAF, Amazon CloudFront, Microsoft 365 + 1 more | Find emails |
| monsteraplay.com | #128,637 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| transfermarkt.jp | #128,684 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| ankama-games.com | #128,726 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| transfermarkt.co.kr | #129,056 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| equipmenttrader.com | #129,209 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| constructionweekonline.com | #129,535 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| carepatron.com | #129,598 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| adzuna.com.mx | #129,695 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| godt.no | #129,839 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| centrecom.com.au | #130,130 | AWS WAF, Amazon Route 53, Amazon Web Services + 1 more | Find emails |
| reporteindigo.com | #130,195 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| lessonplanet.com | #130,439 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| casinoeuro.com | #130,636 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| pollev.com | #130,668 | AWS WAF, Amazon (ACM), Amazon Route 53 + 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 →