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 |
|---|---|---|---|
| portaldahabitacao.pt | #184,958 | AOS, Apache, Google Analytics + 5 more | Find emails |
| omniplexcinemas.co.uk | #184,979 | Cloudflare, Google Analytics, Google Tag Manager + 5 more | Find emails |
| heubach-media.de | #184,990 | ASP.NET, Bootstrap, Chart.js + 7 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| lowadi.com | #184,994 | Azure DNS, Nginx, Swiper + 3 more | Find emails |
| fip.org | #184,996 | Bootstrap, Cloudflare, Font Awesome + 9 more | Find emails |
| audalaxy.net | #185,006 | Apache, WordPress, Yoast SEO + 1 more | Find emails |
| selfcater.com | #185,031 | Amazon Route 53, Nginx | Find emails |
| shop2banh.vn | #185,073 | Bootstrap, Google Analytics, Google Tag Manager + 7 more | Find emails |
| profuturo.com.pe | #185,133 | Adobe Experience Cloud (Launch), Agility CMS, Akamai Bot Manager + 7 more | Find emails |
| tungsten-network.com | #185,164 | All in One SEO, Azure Front Door, Bootstrap + 15 more | Find emails |
| brcondos.com.br | #185,174 | Adobe Fonts (Typekit), Amazon Route 53, Apache + 9 more | Find emails |
| sinergise.com | #185,192 | Drupal, Fathom, Nginx + 4 more | Find emails |
| plasan.com | #185,264 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| suntory.com.tw | #185,299 | Microsoft IIS | Find emails |
| rzowl.de | #185,327 | Apache, Google Fonts, PHP + 2 more | Find emails |
| coomeva.com.co | #185,337 | Azure DNS, Bootstrap, Font Awesome + 17 more | Find emails |
| paih.gov.pl | #185,338 | AOS, Bootstrap, Font Awesome + 8 more | Find emails |
| krka.si | #185,378 | Adobe Fonts (Typekit), Google Tag Manager, Nuxt.js + 1 more | Find emails |
| hostment.com | #185,441 | Apache | Find emails |
| rai.nl | #185,461 | Azure API Management, Cookiebot, Google Analytics + 8 more | Find emails |
| boost-my.website | #185,462 | LiteSpeed | Find emails |
| po-static.com | #185,495 | Nginx, GoDaddy | Find emails |
| serra.es.gov.br | #185,507 | Font Awesome, Google Analytics, Google Tag Manager + 6 more | Find emails |
| keskisenkello.fi | #185,531 | Adobe Fonts, Adobe Fonts (Typekit), Amazon CloudFront + 8 more | Find emails |
| zac.ai | #185,546 | Amazon Route 53, Nginx | 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 →