SSL/TLS Certificates
30,031 of the 965,200 top sites in our Tranco top-1M census run Sectigo (3.1%). 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 |
|---|---|---|---|
| topp-kreativ.de | #270,551 | Google Tag Manager, Matomo, Microsoft 365 + 3 more | Find emails |
| nicd.ac.za | #270,610 | Font Awesome, Google Analytics, Google Fonts + 5 more | Find emails |
| gtd.cl | #270,631 | Bootstrap, Google Fonts, Google Tag Manager + 4 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| qzzr.com |
| #270,638 |
| Google Tag Manager, Nginx, WordPress |
| Find emails |
| 1sourcedist.com | #270,640 | Imperva | Find emails |
| qiecdn.com | #270,715 | Next.js, Nginx, React | Find emails |
| tryg.dk | #270,780 | Drupal, Google Fonts, Nginx | Find emails |
| web2carz.com | #270,803 | Google Publisher Tag, Microsoft 365, PHP + 1 more | Find emails |
| cisac.org | #270,835 | Matomo, Microsoft 365, Nginx + 2 more | Find emails |
| vikingelectric.com | #270,909 | ASP.NET, ConsentMo, Font Awesome + 6 more | Find emails |
| collectorz.com | #270,988 | Amazon Route 53, Bootstrap, Fancybox + 5 more | Find emails |
| indiastat.com | #271,006 | Cloudflare, Drupal, Google Ads Conversion + 7 more | Find emails |
| fsource.io | #271,052 | Amazon CloudFront, Citrix NetScaler, Cloudflare | Find emails |
| saij.gob.ar | #271,091 | — | Find emails |
| volvic.de | #271,100 | Amazon Route 53, Fastly, Adobe Experience Manager | Find emails |
| idealapi.nl | #271,133 | Cloudflare, Cloudflare edge/CDN | Find emails |
| itex.at | #271,146 | Font Awesome, Google Tag Manager, PHP + 3 more | Find emails |
| optisport.nl | #271,163 | Cloudflare edge/CDN, Cookiebot, Drupal + 6 more | Find emails |
| sasshoes.com | #271,174 | Amazon Route 53, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| resplendence.com | #271,261 | Font Awesome, cdnjs, jQuery | Find emails |
| sliq.net | #271,302 | Bootstrap, Google Analytics, Google Fonts + 4 more | Find emails |
| playsoft.biz | #271,339 | AOS, Bootstrap, Font Awesome + 10 more | Find emails |
| domainersguru.com | #271,373 | ASP.NET, Bootstrap, Font Awesome + 3 more | Find emails |
| correo.com.uy | #271,392 | — | Find emails |
| bernstein.com | #271,396 | Adobe Experience Cloud (Launch), Google Tag Manager, LinkedIn Insight Tag + 4 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →