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 |
|---|---|---|---|
| afroromance.com | #132,947 | Amazon Route 53, ClickCease, Google Analytics + 9 more | Find emails |
| rvty.net | #132,974 | Nginx | Find emails |
| multimedia.pl | #132,999 | ASP.NET, Bootstrap, Font Awesome + 1 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #133,021 |
| Meta Pixel, Modernizr, Nginx + 3 more |
| Find emails |
| gsb.or.th | #133,027 | Bootstrap, Font Awesome, Google Analytics + 8 more | Find emails |
| cloud-security.net | #133,049 | Bootstrap, Cloudflare, Friendly Captcha + 2 more | Find emails |
| oddcast.com | #133,063 | Amazon Route 53, Apache, Bootstrap + 8 more | Find emails |
| axesor.es | #133,087 | CSC (Digital Brand Services), Imperva | Find emails |
| os-templates.com | #133,107 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| whirlpoolparts.com | #133,113 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| arcep.bf | #133,130 | All in One SEO, Bootstrap, Font Awesome + 7 more | Find emails |
| novajus.com.br | #133,207 | Azure DNS, jQuery | Find emails |
| maharaniweddings.com | #133,213 | Cookie-Script, Google Analytics, Meta Pixel + 2 more | Find emails |
| edalnice.cz | #133,214 | Next.js, Turbopack, React | Find emails |
| hznu.edu.cn | #133,226 | Matomo, PHP, Slick Carousel + 2 more | Find emails |
| totv.org | #133,257 | Feedburner, GitHub, GitHub Pages + 1 more | Find emails |
| umn.ac.id | #133,337 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| hqchip.com | #133,340 | Alibaba Cloud CDN, Citrix NetScaler, Google Tag Manager + 4 more | Find emails |
| wroclaw.sa.gov.pl | #133,360 | Apache, Bootstrap, Fancybox + 3 more | Find emails |
| imoti.net | #133,401 | Apache, DoubleClick (Google Ads), Google Analytics + 10 more | Find emails |
| brunner.at | #133,430 | Apache | Find emails |
| iwinv.kr | #133,439 | Algolia, Apache, Docusaurus + 4 more | Find emails |
| attackpoint.org | #133,440 | Amazon Route 53, Google AdSense, Google Analytics + 1 more | Find emails |
| msf.es | #133,487 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 7 more | Find emails |
| thomasnet-navigator.com | #133,528 | ASP.NET, Azure DNS, Microsoft IIS | 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 →