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 |
|---|---|---|---|
| freehostia.com | #13,252 | Apache, Google Analytics, Google Tag Manager | Find emails |
| hosttech.ch | #13,277 | Adobe Fonts (Typekit), Apache, CookieYes + 8 more | Find emails |
| birmingham.ac.uk | #13,286 | ASP.NET, Contensis, Google Tag Manager + 3 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| pizzahut.com |
| #13,292 |
| Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 6 more |
| Find emails |
| openculture.com | #13,293 | AddToAny, CleanTalk, Font Awesome + 9 more | Find emails |
| tlauncher.org | #13,314 | Cloudflare, DDoS-Guard, PHP + 2 more | Find emails |
| volaris.com | #13,333 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 5 more | Find emails |
| whoisdomain.kr | #13,356 | Akamai Edge DNS, Apache, PHP | Find emails |
| rrpicturearchives.net | #13,380 | ASP.NET, Bootstrap, DataTables + 10 more | Find emails |
| hessenschau.de | #13,386 | Microsoft 365, Alpine.js | Find emails |
| amadeus.com | #13,401 | Adobe Experience Cloud (Launch), Akamai Edge DNS, Bootstrap + 8 more | Find emails |
| saramin.co.kr | #13,414 | Feedburner, Google Analytics, Google Tag Manager + 5 more | Find emails |
| pushalert.co | #13,415 | Google Cloud DNS, Sucuri | Find emails |
| democracynow.org | #13,423 | Clicky, Google Analytics, Google Fonts + 6 more | Find emails |
| 000webhost.com | #13,469 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| darty.com | #13,475 | Akamai Edge DNS, Akamai edge/CDN, Akamai mPulse + 1 more | Find emails |
| cloudmark.com | #13,495 | Drupal, Google Analytics, Google Tag Manager + 5 more | Find emails |
| ziniao.com | #13,503 | Alibaba Cloud CDN, Baidu Analytics, Citrix NetScaler + 9 more | Find emails |
| nd.gov | #13,510 | ConsentMo, Drupal, Microsoft 365 + 4 more | Find emails |
| readspeaker.com | #13,550 | Adobe Fonts (Typekit), Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| mun.ca | #13,557 | Apache, Google Tag Manager, Ionic Framework + 4 more | Find emails |
| rabobank.nl | #13,565 | Akamai Edge DNS, Express, Microsoft 365 + 1 more | Find emails |
| thains.co.th | #13,572 | Apache, Bootstrap, Google Analytics + 6 more | Find emails |
| interpol.int | #13,619 | Akamai Edge DNS, Google Analytics, Google Tag Manager + 2 more | Find emails |
| grupoloading.com | #13,622 | Bootstrap, Laravel, Nginx + 3 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 →