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 |
|---|---|---|---|
| aufbau-verlage.de | #84,035 | Apache, ConsentMo, Drupal | Find emails |
| lina.co.kr | #84,062 | Adobe Experience Cloud (Launch), Amazon CloudFront, Nuxt.js + 2 more | Find emails |
| my.gov.il | #84,064 | Akamai Edge DNS, Dynatrace, Angular | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #84,113 |
| Astro, Cloudflare, YouTube + 1 more |
| Find emails |
| finpay.id | #84,151 | Cloudflare edge/CDN, Font Awesome, GitBook + 12 more | Find emails |
| sgpsistema.com | #84,158 | Apache, Google Analytics, Google Fonts + 4 more | Find emails |
| desenfunda.com | #84,175 | Cookie-Script, DoubleClick (Google Ads), Fancybox + 11 more | Find emails |
| lockerfox.com | #84,181 | Apache, Font Awesome, Foundation + 9 more | Find emails |
| desu.edu | #84,217 | Apache, Drupal, Jotform + 1 more | Find emails |
| betteradsystem.com | #84,229 | — | Find emails |
| wassada.com | #84,273 | Microsoft IIS | Find emails |
| tramada.com.au | #84,274 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| sfunpay.com | #84,322 | Cloudflare, Nginx | Find emails |
| coaxis.com | #84,370 | Divi, Google Fonts, Gravatar + 3 more | Find emails |
| real-france.fr | #84,402 | Google Fonts, Google Tag Manager, Nginx + 3 more | Find emails |
| topsecret.pl | #84,417 | Google Tag Manager, Google Workspace, Nginx | Find emails |
| tipsterarea.com | #84,474 | Apache, Google Analytics, Google Tag Manager + 1 more | Find emails |
| sefaz.pe.gov.br | #84,523 | ASP.NET, Font Awesome, Google Hosted Libraries + 3 more | Find emails |
| santafe.edu.ar | #84,544 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| rentascordoba.gob.ar | #84,609 | Amazon CloudFront, Amazon S3, Cloudflare + 2 more | Find emails |
| pornobrot.com | #84,624 | LiveInternet (Yadro), Nginx | Find emails |
| countrymusichalloffame.org | #84,633 | ASP.NET, Amazon Route 53, Apache + 14 more | Find emails |
| afpnet.com.pe | #84,719 | ASP.NET, Bootstrap, Microsoft 365 + 2 more | Find emails |
| askep.net | #84,735 | Cloudflare, Fancybox, Google Analytics + 7 more | Find emails |
| celestino.gr | #84,758 | ASP.NET, Adman, Cloudflare + 9 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →