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 |
|---|---|---|---|
| sommer.eu | #403,779 | Apache, CookieFirst, Let's Encrypt + 1 more | Find emails |
| klimafakten.de | #404,005 | Apache, Bluesky, Bootstrap + 8 more | Find emails |
| data-room.de | #405,214 | Let's Encrypt, TYPO3 | Find emails |
| #16,359 (Tranco) |
| Find emails |
| 5 | nicsell.com | #18,806 (Tranco) | Find emails |
| #407,401 |
| Fastly, Let's Encrypt, Sana Commerce + 1 more |
| Find emails |
| landcoimport.com | #409,121 | Cloudflare, Fastly, Let's Encrypt + 3 more | Find emails |
| rehadat.de | #409,698 | Bootstrap, Font Awesome, Let's Encrypt + 2 more | Find emails |
| vivawest.de | #415,470 | Google Tag Manager, Matomo, Nginx + 6 more | Find emails |
| bund-verlag.de | #415,523 | CCM19, Let's Encrypt, Nginx + 1 more | Find emails |
| wdt.de | #415,747 | Let's Encrypt, Microsoft 365, TYPO3 + 2 more | Find emails |
| obdtotal.com | #419,549 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| alfatraining.de | #420,894 | Let's Encrypt, Matomo, PHP + 1 more | Find emails |
| pari.com | #422,382 | DigiCert, Google Tag Manager, Microsoft 365 + 3 more | Find emails |
| bleker-gruppe.de | #423,796 | Apache, Google Analytics, Google Tag Manager + 4 more | Find emails |
| miha-bodytec.com | #427,284 | DigiCert, Google Tag Manager, Microsoft 365 + 4 more | Find emails |
| blutspendedienst.com | #432,064 | CookieFirst, DigiCert, Drupal + 4 more | Find emails |
| kalmeda.de | #432,756 | Drupal, Nginx | Find emails |
| cabgroup.net | #436,504 | Azure DNS, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| linforme.com | #441,626 | Chartbeat, Fastly, Google Cloud DNS + 5 more | Find emails |
| infomantis.de | #442,217 | Google Tag Manager, Let's Encrypt, Nginx + 3 more | Find emails |
| gourmet.at | #442,613 | Apache, Cookiebot, DigiCert + 5 more | Find emails |
| thermewien.at | #443,224 | Let's Encrypt, Nginx, PHP + 5 more | Find emails |
| wuerth-aerospace.com | #443,359 | Akamai edge/CDN, Bootstrap, Google Analytics + 3 more | Find emails |
| homesforheroes.com | #444,881 | Amazon (ACM), Amazon CloudFront, Apache + 10 more | Find emails |
| skl.de | #445,148 | Adform, Apache, Google Ads Conversion + 9 more | Find emails |
| liebesleben.de | #446,094 | Nginx, TYPO3, WhatsApp Business (click-to-chat) + 2 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 →