SSL/TLS Certificates
33,361 of the 1,000,000 top sites in our Tranco top-1M census run Sectigo (3.3%). A certificate authority that issues SSL/TLS certificates used to secure websites with HTTPS. Detection is homepage-level HTML/header fingerprinting, so a site can run Sectigo on other pages without it showing here.
Other ssl/tls certificates
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | github.com | #29 (Tranco) | Find emails |
| 2 | roblox.com | #73 (Tranco) | Find emails |
| 3 | nginx.com | #95 (Tranco) | Find emails |
| 4 | f5.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| orange.ci | #204,238 | — | Find emails |
| diverza.com | #204,299 | All in One SEO, Fancybox, Font Awesome + 4 more | Find emails |
| crea-mt.org.br | #204,371 | Bootstrap, Font Awesome, Google Fonts + 2 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| aztus.com |
| #204,383 |
| Apache, Fancybox, Google Tag Manager + 2 more |
| Find emails |
| cqut.edu.cn | #204,420 | — | Find emails |
| shoes.com | #204,507 | CSC (Digital Brand Services), DataDome | Find emails |
| alazhar.edu.ps | #204,523 | ASP.NET, Cloudflare, Font Awesome + 6 more | Find emails |
| nitda.gov.ng | #204,551 | Bootstrap, Fancybox, Font Awesome + 10 more | Find emails |
| pages.fm | #204,555 | Cloudflare, Express, Google Analytics + 3 more | Find emails |
| getstencil.com | #204,600 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| javerianacali.edu.co | #204,609 | AOS, Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| indonesiabaik.id | #204,621 | Cloudflare, Fancybox, Font Awesome + 11 more | Find emails |
| dotinc.net | #204,624 | Apache, WordPress, jQuery | Find emails |
| copa.com | #204,730 | Amazon CloudFront, CSC (Digital Brand Services), DataDome + 1 more | Find emails |
| a3sport.cz | #204,733 | ConsentMo, Fancybox, Google Fonts + 5 more | Find emails |
| unielektro.de | #204,760 | CookieFirst, Eye-Able, Font Awesome + 4 more | Find emails |
| qsp.nl | #204,781 | Apache, jQuery, jQuery UI | Find emails |
| estrefa.pl | #204,810 | Apache, Google Hosted Libraries, Google Tag Manager + 3 more | Find emails |
| hausundgrund.de | #204,841 | Drupal, Matomo, Microsoft 365 + 2 more | Find emails |
| spice-tv.jp | #204,936 | Amazon Route 53, Apache, Google Fonts + 6 more | Find emails |
| tfyre.com | #205,015 | GitHub, GitHub Pages | Find emails |
| marshalls.co.uk | #205,064 | ASP.NET, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| saude.rj.gov.br | #205,166 | Microsoft IIS | Find emails |
| bluepos-lizenz.de | #205,206 | Nginx | Find emails |
| caorda.com | #205,210 | Adobe Fonts (Typekit), Apache, Bootstrap + 8 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 →