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 |
|---|---|---|---|
| repertoire.hk | #498,712 | Fastly, Google Fonts, Let's Encrypt + 3 more | Find emails |
| dbz.de | #499,720 | Apache, Bootstrap, Cloudflare Turnstile + 12 more | Find emails |
| kraftwerktools.com | #500,472 | Fastly, Let's Encrypt, Microsoft 365 + 2 more | Find emails |
| #16,359 (Tranco) |
| Find emails |
| 5 | nicsell.com | #18,806 (Tranco) | Find emails |
| eucerin.fr | #501,342 | Azure Front Door, DigiCert, Microsoft 365 | Find emails |
| bibelkommentare.de | #503,345 | Apache, Bootstrap, Font Awesome + 3 more | Find emails |
| interzero.de | #503,785 | Apache, Cookiebot, Google Tag Manager + 3 more | Find emails |
| sbb-immobilien.ch | #508,568 | Adobe Experience Cloud (Launch), Amazon Route 53, Cloudflare Bot Management + 10 more | Find emails |
| lehrauto.com | #508,889 | Fastly, Google Fonts, Let's Encrypt + 4 more | Find emails |
| eucerin.com.br | #511,018 | Azure Front Door, DigiCert, Google Tag Manager + 1 more | Find emails |
| dzhyp.de | #512,065 | AOS, DigiCert, Matomo + 2 more | Find emails |
| energymeteo.systems | #513,275 | Font Awesome, Let's Encrypt, Matomo + 3 more | Find emails |
| warnermusic.de | #515,431 | Adobe Experience Cloud (Launch), Let's Encrypt, Nginx + 5 more | Find emails |
| italicatessen.ie | #516,151 | Fastly, Google Fonts, Let's Encrypt + 3 more | Find emails |
| hwk-muenchen.de | #516,569 | Apache, Bootstrap, CCM19 + 6 more | Find emails |
| obs.at | #516,873 | Apache, Let's Encrypt, Matomo + 2 more | Find emails |
| hella.info | #520,693 | Google Tag Manager, Hotjar, Let's Encrypt + 3 more | Find emails |
| statistics.gov.rw | #520,729 | Apache, Bootstrap, Drupal + 8 more | Find emails |
| grosbusch-shop.lu | #521,044 | Fastly, Let's Encrypt, Sana Commerce + 1 more | Find emails |
| mail.co.uk | #524,411 | Bootstrap, Let's Encrypt, Nginx + 2 more | Find emails |
| mapz.com | #525,222 | DigiCert, Matomo, Nginx | Find emails |
| eucerin.co.th | #528,137 | Azure Front Door, DigiCert, Google Tag Manager | Find emails |
| leggett.com | #528,892 | ASP.NET, DigiCert, Microsoft 365 + 4 more | Find emails |
| comune.livorno.it | #529,030 | Cookie-Script, Google Trust Services, Laravel + 4 more | Find emails |
| idloom.com | #532,451 | Apache, Concrete CMS, Cookie-Script + 4 more | Find emails |
| avantik-us.com | #536,630 | Fastly, Let's Encrypt, Microsoft 365 + 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 →