CAPTCHA & Bot Protection
484 of the 1,000,000 top sites in our Tranco top-1M census run Friendly Captcha (0%). A privacy-focused, non-interactive CAPTCHA alternative. Detection is homepage-level HTML/header fingerprinting, so a site can run Friendly Captcha on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | plausible.io | #3,823 (Tranco) | Find emails |
| 2 | proxmox.com | #4,085 (Tranco) | Find emails |
| 3 | airliquide.com | #15,947 (Tranco) | Find emails |
| 4 | baden-wuerttemberg.de |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| plausible.io | #3,823 | Algolia, Better Uptime, Bluesky + 17 more | Find emails |
| proxmox.com | #4,085 | Font Awesome, Joomla, Let's Encrypt + 1 more | Find emails |
| airliquide.com | #15,947 | Akamai Bot Manager, ConsentMo, Didomi + 9 more | Find emails |
| #16,359 (Tranco) |
| Find emails |
| 5 | nicsell.com | #18,806 (Tranco) | Find emails |
| baden-wuerttemberg.de |
| #16,359 |
| DigiCert, Matomo, Nginx + 1 more |
| Find emails |
| nicsell.com | #18,806 | Bootstrap, Fancybox, Font Awesome + 4 more | Find emails |
| haufe.de | #19,046 | AWS Lambda, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| internex.at | #27,330 | Bootstrap, Cloudflare edge/CDN, DigiCert + 8 more | Find emails |
| thueringen.de | #27,343 | Let's Encrypt, reCAPTCHA, unpkg | Find emails |
| wwf.de | #28,117 | Apache, Bluesky, Let's Encrypt + 3 more | Find emails |
| bmfsfj.de | #29,805 | Matomo, jsDelivr | Find emails |
| dastelefonbuch.de | #29,845 | Cloudflare, Cloudflare edge/CDN, Consentmanager.net + 4 more | Find emails |
| oeko-tex.com | #31,327 | Apache, DigiCert, Django + 6 more | Find emails |
| dasoertliche.de | #31,790 | Cloudflare, Cloudflare edge/CDN, Consentmanager.net + 6 more | Find emails |
| justetf.com | #32,667 | Amazon (ACM), Amazon Route 53, Font Awesome + 5 more | Find emails |
| penguin.de | #34,186 | DigiCert, Microsoft 365, Nginx | Find emails |
| lascana.de | #39,698 | Akamai Edge DNS, Awin, DigiCert + 6 more | Find emails |
| mvv-muenchen.de | #43,684 | AOS, Apache, Leaflet + 4 more | Find emails |
| d-trust.net | #47,185 | Apache, etracker | Find emails |
| compart.com | #47,450 | Contao, DigiCert, Google Tag Manager + 3 more | Find emails |
| mail.de | #56,604 | Bootstrap, Google Analytics, Google Hosted Libraries + 4 more | Find emails |
| jobijoba.com | #62,129 | Apache, Didomi, Google Tag Manager + 6 more | Find emails |
| ugc.fr | #62,213 | Bootstrap, Font Awesome, Google Cloud DNS + 9 more | Find emails |
| bundesaerztekammer.de | #63,107 | Bluesky, Cookiebot, Font Awesome + 4 more | Find emails |
| randomhouse.de | #67,507 | DigiCert, Microsoft 365, Nginx | Find emails |
| ar24.fr | #69,535 | Apache, DoubleClick (Google Ads), Google Tag Manager + 9 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 →