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 |
|---|---|---|---|
| pjenl.gob.mx | #185,547 | ASP.NET, AddToAny, Bootstrap + 11 more | Find emails |
| bodacc.fr | #185,552 | AngularJS, Font Awesome, OpenResty + 3 more | Find emails |
| morgengold.de | #185,553 | Apache, Google Tag Manager, Meta Pixel + 3 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| payzer.com |
| #185,571 |
| Amazon Route 53, ChatGPT Ads Pixel, Clearbit + 7 more |
| Find emails |
| bmu.ac.bd | #185,588 | Apache, Font Awesome, Google Fonts + 6 more | Find emails |
| alterdatasoftware.com.br | #185,595 | Amazon Route 53, Font Awesome, Google Tag Manager + 1 more | Find emails |
| martinus.cz | #185,598 | Nginx | Find emails |
| 007swz.com | #185,606 | jQuery | Find emails |
| ktimanet.gr | #185,617 | ASP.NET, Microsoft 365, jsDelivr | Find emails |
| microg.org | #185,696 | GitHub, GitHub Pages | Find emails |
| delft.nl | #185,735 | Apache, Drupal, Siteimprove + 1 more | Find emails |
| humuson.com | #185,745 | Apache, Google Ads Conversion, Google Analytics + 6 more | Find emails |
| morgeneyer.de | #185,764 | ASP.NET, Microsoft IIS | Find emails |
| stein-dinse.com | #185,798 | — | Find emails |
| mme.gov.br | #185,805 | Nginx | Find emails |
| renmans.be | #185,839 | AddToAny, Drupal, Fastly + 8 more | Find emails |
| brepols.net | #185,859 | ASP.NET, Microsoft 365, Microsoft IIS | Find emails |
| boombit.cloud | #185,875 | Nginx | Find emails |
| servizipubblicaamministrazione.it | #185,913 | Nginx, PHP, WordPress + 2 more | Find emails |
| securite-sociale.fr | #185,949 | Apache, Bootstrap, Matomo + 2 more | Find emails |
| oglasi.si | #186,045 | Font Awesome, Google AdSense, Google Analytics + 9 more | Find emails |
| angusj.com | #186,202 | Apache, Google Analytics, Google Tag Manager + 1 more | Find emails |
| msj.edu | #186,213 | AOS, Adobe Fonts (Typekit), Apache + 12 more | Find emails |
| istanbuleczaciodasi.org.tr | #186,217 | Bootstrap, Font Awesome, Google Analytics + 11 more | Find emails |
| balikesir.edu.tr | #186,248 | AddToAny, Bootstrap, Google Analytics + 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →