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.
| # | 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 |
|---|---|---|---|
| mozzart.ba | #252,836 | Cloudflare, Google Analytics, Google Fonts + 6 more | Find emails |
| lvportals.lv | #252,838 | Google Analytics, Google Tag Manager, Microsoft 365 + 4 more | Find emails |
| ecliptictech.com | #252,857 | ASP.NET, Google Fonts, Google Tag Manager + 3 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| social-searcher.com | #252,891 | Google Analytics, Google Tag Manager, Google Workspace | Find emails |
| ite.ro | #252,902 | Microsoft 365 | Find emails |
| staedteregion-aachen.de | #252,909 | TYPO3 | Find emails |
| mountelizabeth.com.sg | #252,927 | Amazon CloudFront, Amazon Route 53, AppNexus (Xandr) + 10 more | Find emails |
| carpe.net | #252,967 | Amazon Route 53 | Find emails |
| stevesouders.com | #252,989 | Google Analytics, SpeedCurve, WordPress | Find emails |
| yalova.edu.tr | #252,992 | ASP.NET, Google Analytics, Google Fonts + 2 more | Find emails |
| chinulture.com | #253,006 | Nginx | Find emails |
| thegsresources.com | #253,041 | Google Fonts, PHP | Find emails |
| conn.tw | #253,082 | Amazon Route 53, Google Fonts, PHP + 2 more | Find emails |
| roproxy.com | #253,176 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 2 more | Find emails |
| irpinianetcom.it | #253,188 | Bootstrap, Nginx, PHP + 3 more | Find emails |
| tennis.org.nz | #253,216 | Google Analytics, Meta Pixel, jQuery | Find emails |
| directv.com.co | #253,217 | Amazon CloudFront, Amazon Route 53, Hotjar + 3 more | Find emails |
| myluxstat.io | #253,227 | Namecheap | Find emails |
| umov.me | #253,272 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| cloudfilt.com | #253,283 | AOS, Atlassian Statuspage, Bootstrap + 9 more | Find emails |
| spruceit.com | #253,295 | AB Tasty, Azure DNS, Bazaarvoice + 5 more | Find emails |
| photosex.biz | #253,333 | Nginx | Find emails |
| venuewifi.com | #253,344 | Amazon Route 53, Google Fonts, Nginx | Find emails |
| redtechnology.com | #253,345 | ConsentMo, Google Analytics, Google Identity Services + 11 more | Find emails |
| amgenassist.com | #253,403 | ASP.NET, Amazon Route 53, Google Fonts + 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 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 →