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 |
|---|---|---|---|
| empatica.com | #77,486 | Amazon Route 53, Cloudflare Bot Management, Cloudflare Turnstile + 6 more | Find emails |
| interip.nl | #77,491 | Divi, Microsoft IIS, PHP + 2 more | Find emails |
| air-nifty.com | #77,565 | Amazon Route 53, Nginx | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| tdmu.edu.vn |
| #77,635 |
| ASP.NET, Google Analytics, Google Fonts + 5 more |
| Find emails |
| peoplemanagement.co.uk | #77,637 | ASP.NET, Cloudflare edge/CDN, Google Hosted Libraries + 6 more | Find emails |
| fonacot.gob.mx | #77,695 | ASP.NET, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| meineta.at | #77,735 | Apache, Bootstrap, Font Awesome + 1 more | Find emails |
| dxn2u.com | #77,758 | Blogger, Font Awesome, PHP + 4 more | Find emails |
| berliner-philharmoniker.de | #77,767 | Amazon CloudFront, Friendly Captcha, Microsoft 365 + 4 more | Find emails |
| nhn.com | #77,823 | Akamai Edge DNS, Google Analytics, Google Fonts + 5 more | Find emails |
| property.hk | #77,876 | Apache | Find emails |
| memora.es | #77,900 | Apache, Drupal, Google AdSense + 3 more | Find emails |
| unud.ac.id | #77,907 | AOS, Bootstrap, Chart.js + 14 more | Find emails |
| gokiwi.in | #77,919 | Amazon Route 53, Bootstrap, Google Ads Conversion + 13 more | Find emails |
| renaper.gob.ar | #77,922 | — | Find emails |
| adc.sk | #77,937 | Azure DNS, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| unimed.coop.br | #78,000 | Bootstrap, Cloudflare, Font Awesome + 6 more | Find emails |
| carzing.com | #78,001 | Azure DNS, Cloudflare Bot Management, Cloudflare Web Analytics + 1 more | Find emails |
| allydvm.com | #78,020 | Amazon Route 53, Amazon Web Services, Google Tag Manager + 2 more | Find emails |
| oba.gov.tr | #78,050 | Bootstrap, Font Awesome, Google Analytics + 4 more | Find emails |
| tv8.it | #78,066 | Adobe Experience Cloud (Launch), Akamai Edge DNS, Amazon CloudFront + 2 more | Find emails |
| dnrpa.gov.ar | #78,098 | Apache | Find emails |
| otbasybank.kz | #78,103 | ASP.NET, Bootstrap, Font Awesome + 11 more | Find emails |
| mdes.go.th | #78,111 | Cloudflare Web Analytics, Cloudflare edge/CDN | Find emails |
| generasimaju.co.id | #78,132 | AWS WAF, Amazon Route 53, Amazon Web Services + 1 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 →