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.
| # | 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 |
|---|---|---|---|
| wertgarantie.com | #194,774 | Apache | Find emails |
| adminplus.bg | #194,788 | Cloudflare, Google Analytics, Google Fonts + 1 more | Find emails |
| eais.go.kr | #194,817 | — | Find emails |
| mybrightsites.com |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #194,823 |
| Google Cloud DNS |
| Find emails |
| the-scorpions.com | #194,849 | ASP.NET, DoubleClick (Google Ads), Font Awesome + 9 more | Find emails |
| vegayazilim.com.tr | #194,925 | Font Awesome, Google Fonts, LiteSpeed + 5 more | Find emails |
| veepee.ch | #194,961 | Amazon CloudFront, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| russianplanes.net | #195,016 | Nginx, PHP, Slick Carousel + 1 more | Find emails |
| messagenet.it | #195,019 | Feedaty, Nginx, Nuxt.js + 1 more | Find emails |
| capitalsalud.gov.co | #195,022 | Microsoft 365 | Find emails |
| mosalingua.com | #195,028 | Crisp, Elementor, Font Awesome + 13 more | Find emails |
| aspyprevencion.com | #195,053 | All in One SEO, Font Awesome, Google Analytics + 10 more | Find emails |
| unisel.edu.my | #195,056 | Font Awesome, Google Fonts, Nginx + 3 more | Find emails |
| pierimport.fr | #195,073 | Google Fonts, Laravel, Livewire + 3 more | Find emails |
| ediweb.eu | #195,095 | — | Find emails |
| habitissimo.es | #195,110 | Amazon Route 53, Didomi, Google Analytics + 6 more | Find emails |
| birlaopus.com | #195,115 | Adobe Experience Cloud (Launch), Fastly, Google Analytics + 4 more | Find emails |
| tredy-fashion.de | #195,132 | Apache, CCM19, Google Tag Manager + 5 more | Find emails |
| magnetmail1.net | #195,143 | ASP.NET, Amazon Route 53, Microsoft IIS | Find emails |
| egricayir.com | #195,145 | AddThis, Astro, Criteo + 11 more | Find emails |
| chuka.ac.ke | #195,151 | Apache, Font Awesome, Google Analytics + 6 more | Find emails |
| shadowera.com | #195,263 | Amazon Route 53, Apache, Bootstrap + 8 more | Find emails |
| profiseller.de | #195,276 | Nginx, Tealium | Find emails |
| dongyang.ac.kr | #195,277 | — | Find emails |
| onoffmix.com | #195,311 | Amazon Route 53, Google Tag Manager, Ionic Framework + 10 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 →