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 |
|---|---|---|---|
| duoservers.com | #96,591 | Nginx, PHP | Find emails |
| cupsolidale.it | #96,660 | Nginx, YouTube | Find emails |
| reuters.co.uk | #96,673 | Amazon CloudFront, DataDome | Find emails |
| trade.kg |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #96,688 |
| Amazon Route 53, OpenResty, WhatsApp Business (click-to-chat) + 2 more |
| Find emails |
| keyloop.com | #96,734 | Google Tag Manager, Microsoft 365, Vimeo + 4 more | Find emails |
| pgdlisboa.pt | #96,772 | Apache, Google Fonts, PHP + 1 more | Find emails |
| jncu.in | #96,802 | ASP.NET, Bootstrap, Google Fonts + 3 more | Find emails |
| scitepress.org | #96,850 | ASP.NET, Font Awesome, Microsoft IIS + 1 more | Find emails |
| image1tech.net | #96,872 | Apache, Bootstrap | Find emails |
| 51dzw.com | #96,887 | Alibaba Cloud CDN, Tengine, jQuery | Find emails |
| keurigonline.nl | #96,897 | Apache, ClickTale (Contentsquare), Cookiebot + 6 more | Find emails |
| spiele-palast.de | #96,904 | Amazon Route 53, Bootstrap, Google Fonts + 6 more | Find emails |
| paydashboard.com | #96,941 | Adobe Experience Cloud (Launch), Apache, CSC (Digital Brand Services) + 7 more | Find emails |
| pc6.com | #96,942 | Alibaba Cloud DNS | Find emails |
| designaddict.com | #96,997 | Adobe Fonts (Typekit), Apache, Bootstrap + 10 more | Find emails |
| playpark.com | #97,027 | Imperva, Microsoft 365 | Find emails |
| martechseries.com | #97,050 | Font Awesome, Google Fonts, Nginx + 4 more | Find emails |
| afriregister.com | #97,053 | Apache, Bootstrap, Fancybox + 6 more | Find emails |
| ip-51-81-226.us | #97,095 | Drupal, TagCommander (Commanders Act) | Find emails |
| jayatogelsyd.com | #97,244 | Bootstrap, BunnyCDN, Font Awesome + 3 more | Find emails |
| pucesa.edu.ec | #97,249 | Elementor, Font Awesome, Google Fonts + 7 more | Find emails |
| soychile.cl | #97,250 | Google Analytics, Google Tag Manager, Nginx + 3 more | Find emails |
| sahmcapital.com | #97,260 | Alibaba Cloud CDN, Amazon Route 53, AppsFlyer + 10 more | Find emails |
| mapandroute.de | #97,268 | Font Awesome, Google Fonts, Google Hosted Libraries + 6 more | Find emails |
| cbe.ac.tz | #97,291 | Apache, Bootstrap, Drupal + 6 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 →