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 |
|---|---|---|---|
| napps-2.com | #13,129 | Cloudflare, Cloudflare edge/CDN | Find emails |
| lieferando.de | #13,146 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| websense.com | #13,171 | Amazon Route 53, Drupal, Netlify + 4 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #13,173 |
| Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN |
| Find emails |
| caf.fr | #13,187 | Drupal, Dynatrace | Find emails |
| roistat.com | #13,192 | Cloudflare, Nginx, Slick Carousel + 1 more | Find emails |
| ncku.edu.tw | #13,212 | — | Find emails |
| freehostia.com | #13,252 | Google Analytics, Google Tag Manager | Find emails |
| hosttech.ch | #13,277 | Adobe Fonts (Typekit), CookieYes, Font Awesome + 6 more | Find emails |
| birmingham.ac.uk | #13,286 | Google Tag Manager, styled-components | Find emails |
| pizzahut.com | #13,292 | Akamai Bot Manager, Akamai Edge DNS, Google Tag Manager + 4 more | Find emails |
| openculture.com | #13,293 | Font Awesome, Google AdSense, Google Analytics + 6 more | Find emails |
| tlauncher.org | #13,314 | Cloudflare, DDoS-Guard, PHP + 2 more | Find emails |
| volaris.com | #13,333 | Amazon CloudFront, Amazon Route 53, Fastly + 4 more | Find emails |
| rrpicturearchives.net | #13,380 | ASP.NET, Font Awesome, Google AdSense + 4 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 + 6 more | Find emails |
| saramin.co.kr | #13,414 | PHP, Swiper | Find emails |
| pushalert.co | #13,415 | Bootstrap, Font Awesome, Google Ads Conversion + 14 more | Find emails |
| democracynow.org | #13,423 | Clicky, Google Analytics, Google Fonts + 6 more | Find emails |
| 000webhost.com | #13,469 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| darty.com | #13,475 | Akamai Bot Manager, Akamai Edge DNS, DataDome + 1 more | Find emails |
| cloudmark.com | #13,495 | Drupal, Google Analytics, Google Tag Manager + 3 more | Find emails |
| ziniao.com | #13,503 | Citrix NetScaler, Google Ads Conversion, Google Analytics + 5 more | Find emails |
| nd.gov | #13,510 | ConsentMo, Drupal, Microsoft 365 | 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 →