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 |
|---|---|---|---|
| bandofboats.com | #169,299 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| canaries.co.uk | #169,325 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| getwork.com | #169,580 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| toctoc.com | #169,770 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| thepurchasinghub.com | #169,841 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| i9bet41.com | #169,957 | ASP.NET, Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| iwmf.org | #169,968 | AWS WAF, Cloudflare, Cloudflare Web Analytics + 3 more | Find emails |
| ovidds.com | #169,979 | Amazon (ACM), Amazon Route 53, Font Awesome + 4 more | Find emails |
| bikesales.com.au | #170,139 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon CloudFront + 11 more | Find emails |
| cornelsen.io | #170,379 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| nsnstocks.com | #170,417 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| asapmilspecparts.com | #170,428 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| puzzlewarehouse.com | #170,593 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| nsnfulfillment.com | #170,773 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| asapintegrated.com | #171,546 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| nationalstocknumberparts.com | #171,657 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| nsngamut.com | #171,934 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| 78984.co | #172,080 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| nsndomain.com | #172,091 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| zilo.one | #172,400 | AWS WAF, Amazon (ACM), Amazon Web Services + 1 more | Find emails |
| aogunlimited.com | #172,627 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| unisportstore.no | #172,886 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| aviationpurchasingplatform.com | #173,039 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| aviationpartscircuit.com | #173,059 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| hollandandbarrett.ie | #173,132 | Amazon (ACM), Amazon CloudFront, 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 →