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 |
|---|---|---|---|
| got.net | #123,958 | Cloudflare, Google Analytics, Google Tag Manager + 7 more | Find emails |
| javseen.tv | #123,981 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| ebook5.net | #123,995 | All in One SEO, Amazon Route 53, Apache + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| vas-hosting.com |
| #123,998 |
| Google Tag Manager, Let's Encrypt, Nginx + 3 more |
| Find emails |
| webprato.it | #124,001 | AOS, All in One SEO, Bootstrap + 8 more | Find emails |
| onlinecarpets.co.uk | #124,004 | Bugsnag, ChatGPT Ads Pixel, Cloudflare + 17 more | Find emails |
| fandomspot.com | #124,008 | Amazon Route 53, Bootstrap, Font Awesome + 12 more | Find emails |
| kibek.de | #124,023 | Consentmanager.net, DigiCert, Google Tag Manager + 3 more | Find emails |
| alptransfer.com | #124,035 | Bootstrap, Google Maps, Google Tag Manager + 9 more | Find emails |
| amp.com.au | #124,037 | Cloudflare, DigiCert, Fastly + 1 more | Find emails |
| harlequin.com | #124,039 | Cloudflare edge/CDN, Font Awesome, Let's Encrypt + 3 more | Find emails |
| chanty.com | #124,041 | Amazon Route 53, Apache, Google Tag Manager + 4 more | Find emails |
| mightyskins.com | #124,058 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 14 more | Find emails |
| shockhosting.net | #124,063 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| bookweb.org | #124,067 | Bootstrap, Chart.js, Cloudflare + 14 more | Find emails |
| l2top.co | #124,105 | Bootstrap, Chart.js, Cloudflare + 17 more | Find emails |
| izac.fr | #124,115 | Cloudflare, Cloudflare edge/CDN, Global-e + 9 more | Find emails |
| gartic.com.br | #124,133 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 9 more | Find emails |
| apmreports.org | #124,143 | Amazon (ACM), Amazon CloudFront, Apache + 6 more | Find emails |
| tm.com.my | #124,151 | Bootstrap, ConsentMo, Drupal + 10 more | Find emails |
| feedify.org | #124,159 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| bazaarofmagic.eu | #124,190 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| merchantoftennis.com | #124,233 | Cloudflare edge/CDN, Font Awesome, Let's Encrypt + 10 more | Find emails |
| ferrero.de | #124,242 | Amazon Route 53, Bootstrap, Font Awesome + 8 more | Find emails |
| threebestrated.com | #124,243 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 5 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 →