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 |
|---|---|---|---|
| f2x.nl | #169,195 | Microsoft 365 | Find emails |
| meesterbaan.nl | #169,218 | ASP.NET, Fancybox, Google Fonts + 8 more | Find emails |
| penup.com | #169,227 | Amazon Route 53, Amazon Web Services | Find emails |
| clovekvtisni.cz |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #169,261 |
| Amazon CloudFront, Amazon Route 53, ConsentMo + 7 more |
| Find emails |
| totalvpn.com | #169,283 | Amazon Route 53, Cookiebot | Find emails |
| home24.at | #169,286 | Akamai Edge DNS, Constructor.io, Google Tag Manager + 5 more | Find emails |
| ipmagic.de | #169,292 | Amazon Route 53, Nginx | Find emails |
| eei.org | #169,322 | Amazon Route 53, Google Analytics, Google Fonts + 7 more | Find emails |
| konzept.cc | #169,343 | Nginx | Find emails |
| dehostingleverancier.nl | #169,353 | Bootstrap, Font Awesome, Google Analytics + 6 more | Find emails |
| kku.edu.tr | #169,365 | Microsoft 365 | Find emails |
| tele2.com | #169,378 | Cloudflare edge/CDN, Google Tag Manager, Microsoft 365 + 1 more | Find emails |
| ncsoft.net | #169,421 | Amazon Route 53, Envoy, Google Fonts + 4 more | Find emails |
| yeniasir.com.tr | #169,447 | Amazon CloudFront, Amazon Route 53, Criteo + 7 more | Find emails |
| purs.gov.rs | #169,455 | Apache, Font Awesome, Google Analytics + 6 more | Find emails |
| bnshosting.net | #169,492 | Bootstrap, Cloudflare Turnstile, Font Awesome + 9 more | Find emails |
| giganet.hu | #169,495 | Apache, Divi, Google Fonts + 4 more | Find emails |
| netco.uz | #169,501 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| attributionapp.com | #169,504 | Amazon CloudFront, Amazon S3, Google Fonts + 3 more | Find emails |
| comedie-francaise.fr | #169,510 | Apache, ConsentMo, Drupal + 2 more | Find emails |
| corebrands.com | #169,521 | Apache, Drupal, Google Tag Manager + 2 more | Find emails |
| aqxaromods.com | #169,523 | Font Awesome, Google Analytics, Google Tag Manager + 2 more | Find emails |
| eolab.de | #169,557 | Nginx, jQuery | Find emails |
| ion.org | #169,637 | Bootstrap, CKEditor, Cloudflare + 10 more | Find emails |
| risorseimmobiliari.it | #169,716 | ASP.NET, Bootstrap, Fancybox + 7 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 →