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 |
|---|---|---|---|
| azet.sk | #7,818 | DoubleClick (Google Ads), Gemius, Google AdSense + 9 more | Find emails |
| paychex.com | #7,870 | Akamai Edge DNS, Cloudflare edge/CDN, Datadog + 20 more | Find emails |
| cigna.com | #7,874 | Adobe Experience Cloud (Launch), Amazon CloudFront, Amazon S3 + 5 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| grserver.gr |
| #7,885 |
| Amazon Route 53, Bootstrap, Cloudflare edge/CDN + 9 more |
| Find emails |
| masrawy.com | #7,996 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| pocketoption.com | #8,040 | AppsFlyer, Google Fonts, Google Tag Manager + 11 more | Find emails |
| xvideos3.com | #8,043 | Cloudflare, Nginx | Find emails |
| islonline.net | #8,079 | Bootstrap, jQuery | Find emails |
| cellphones.com.vn | #8,081 | Cloudflare, Next.js, Nginx + 1 more | Find emails |
| novosti.rs | #8,114 | Consentmanager.net, DoubleClick (Google Ads), Fancybox + 9 more | Find emails |
| queensu.ca | #8,137 | Azure Front Door, Bootstrap, ConsentMo + 7 more | Find emails |
| ncl.ac.uk | #8,139 | Apache, Cookiebot, Font Awesome + 10 more | Find emails |
| veikkaus.fi | #8,187 | Adform, Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| lpsg.com | #8,195 | ConsentMo, Google Analytics, Google Fonts + 4 more | Find emails |
| mgm.gov.tr | #8,197 | ASP.NET, AngularJS, Google Analytics + 3 more | Find emails |
| servedbyadbutler.com | #8,230 | Amazon Route 53, Nginx | Find emails |
| nrc.nl | #8,291 | Cloudflare, Cloudflare Turnstile, Didomi + 7 more | Find emails |
| espn.com.ar | #8,335 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| sena.edu.co | #8,366 | Font Awesome, Google Fonts, Microsoft 365 + 1 more | Find emails |
| hentaiheroes.com | #8,368 | Apache, Google Fonts, Google Hosted Libraries + 2 more | Find emails |
| cryoutcreations.eu | #8,401 | Apache, Gravatar, PHP + 4 more | Find emails |
| espn.com.mx | #8,404 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| ss.lv | #8,427 | Google Tag Manager, PHP | Find emails |
| ticktick.com | #8,435 | Amazon Route 53, Google Analytics, Google Tag Manager + 4 more | Find emails |
| sendpulse.com | #8,457 | Amazon Route 53, Cookiebot, Crisp + 5 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 →