CAPTCHA & Bot Protection
91,344 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9.1%). Google's CAPTCHA/bot-scoring widget, the most widely deployed CAPTCHA by far. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | apache.org | #125 (Tranco) | Find emails |
| 3 | one.one | #160 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| rev.ai | #119,297 | AWS Lambda, Adobe Fonts (Typekit), Amazon (ACM) + 17 more | Find emails |
| miramax.com | #119,309 | Amazon (ACM), Amazon CloudFront, Bootstrap + 13 more | Find emails |
| hdiseguros.com.br | #119,331 | Adopt, Akamai Bot Manager, Akamai edge/CDN + 14 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| wwaytv3.com | #119,342 | Bootstrap, Empower Local, Font Awesome + 12 more | Find emails |
| here-host.com | #119,345 | Google Fonts, Let's Encrypt, Tawk.to + 1 more | Find emails |
| cashnetusa.com | #119,347 | Adobe Experience Cloud (Launch), Amazon (ACM), Datadog + 10 more | Find emails |
| smartbackgroundchecks.com | #119,380 | Adapex, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| audiomeans.fr | #119,384 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 10 more | Find emails |
| fastnic.ru | #119,422 | Bootstrap, Font Awesome, Let's Encrypt + 4 more | Find emails |
| escarpe.it | #119,426 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 3 more | Find emails |
| nift.me | #119,452 | Amazon Route 53, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| justmylook.com | #119,462 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| surepayroll.com | #119,476 | AWS Lambda, Cloudflare edge/CDN, Convert + 17 more | Find emails |
| basenet.nl | #119,492 | Amazon Route 53, Divi, Google Analytics + 8 more | Find emails |
| gamegami.com | #119,498 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| great-technology.be | #119,527 | Cloudflare edge/CDN, Cookie-Script, Google Analytics + 9 more | Find emails |
| cogitatiopress.com | #119,544 | AddThis, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| lcp.fr | #119,547 | AddToAny, Apache, Bluesky + 6 more | Find emails |
| basalte.be | #119,557 | DigiCert, Google Analytics, Google Tag Manager + 7 more | Find emails |
| answerbag.com | #119,560 | Bootstrap, Font Awesome, Google AdSense + 13 more | Find emails |
| supermotors.net | #119,568 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| sdsns.com | #119,574 | Apache, Font Awesome, Google Tag Manager + 4 more | Find emails |
| kiswe.com | #119,576 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 11 more | Find emails |
| mocoapp.com | #119,581 | Caddy, Cloudflare, Google Tag Manager + 10 more | Find emails |
| hyperxgaming.com | #119,584 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare edge/CDN + 7 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
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 →