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 |
|---|---|---|---|
| neighbor.com | #101,898 | Amazon CloudFront, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| fonecta.fi | #102,020 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| ecuavisa.com | #102,126 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| genscript.com | #102,279 | AWS WAF, Amazon CloudFront, Amplitude + 19 more | Find emails |
| windstarcruises.com | #102,281 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| crowdspring.com | #102,329 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| studymode.com | #102,489 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| taw9eel.com | #102,726 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| bidspotter.co.uk | #103,454 | ASP.NET, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| go4worldbusiness.com | #103,518 | AWS WAF, Amazon Route 53, Apache + 4 more | Find emails |
| hi8199.com | #103,761 | ASP.NET, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| jagoledak-seo.com | #103,809 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 11 more | Find emails |
| new888f.vip | #104,811 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| new888t.com | #104,812 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| betterhelp.co.il | #105,018 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| secretldn.com | #105,020 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| kicker.ch | #105,041 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| medifind.com | #105,044 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| transfermarkt.co.id | #105,195 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| shbet900.com | #106,227 | ASP.NET, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| winmatch555.com | #106,432 | Amazon (ACM), Amazon Route 53, Apache + 8 more | Find emails |
| starcasino.it | #106,880 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| transfermarkt.co.za | #107,828 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| hbx.com | #108,229 | AWS WAF, Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| spydialer.com | #108,338 | ASP.NET, Amazon (ACM), Amazon Route 53 + 16 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 →