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 |
|---|---|---|---|
| auctionsynergy.com | #480,310 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| watchfinder.cy | #480,747 | AWS WAF, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| proclinic.es | #481,365 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| #313 (Tranco) |
| Find emails |
| 5 | checkpoint.com | #338 (Tranco) | Find emails |
| hydroottawa.com | #483,613 | Amazon CloudFront, Amazon S3, Cloudflare + 9 more | Find emails |
| processexcellencenetwork.com | #483,667 | AWS WAF, Amazon (ACM), Amazon Route 53 | Find emails |
| instantaneousdelivery.com | #484,506 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| moravia.com | #484,923 | AWS WAF, Amazon (ACM), Amazon CloudFront | Find emails |
| easysigns.com.au | #485,475 | AWS WAF, Amazon Route 53, Apache + 22 more | Find emails |
| comehome.com | #486,065 | Amazon (ACM), Amazon Route 53, Google Analytics + 2 more | Find emails |
| thepeakmagazine.com.sg | #486,705 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| stihl.be | #487,266 | AWS WAF, Amazon CloudFront, Microsoft 365 | Find emails |
| acaric.jp | #490,336 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| fertilityiq.com | #490,635 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| jackpotvillage.com | #491,358 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| seatrium.com | #491,483 | AOS, AWS WAF, Apache + 6 more | Find emails |
| mostphotos.com | #491,490 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| smartbuyglasses.co.za | #491,701 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| rsvpcottages.com | #491,933 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| shopperplus.ca | #492,517 | AWS WAF, Amazon Route 53, Amazon Web Services | Find emails |
| kingsdominion.com | #493,340 | AB Tasty, Amazon Route 53, Google Tag Manager + 7 more | Find emails |
| cabinetfolliot.com | #493,432 | AWS WAF, Let's Encrypt, Microsoft 365 | Find emails |
| timeticket.jp | #493,670 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| buycivilaircraftparts.com | #493,906 | AWS WAF, Amazon (ACM), Amazon Web Services | Find emails |
| fullsight.org | #494,319 | AWS WAF, Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| cshub.com | #494,668 | AWS WAF, Amazon (ACM) | 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 →