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 |
|---|---|---|---|
| amen.fr | #27,530 | Bootstrap, Font Awesome, Google Fonts + 5 more | Find emails |
| toureiffel.paris | #27,533 | AT Internet, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| sitelutions.com | #27,617 | Cloudflare edge/CDN, Font Awesome, Google Analytics + 3 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| easyhost.be | #27,619 | ASP.NET, Adobe Fonts (Typekit), Apache + 6 more | Find emails |
| ajet.com | #27,634 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 5 more | Find emails |
| one-line.com | #27,635 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 16 more | Find emails |
| freedownloadmanager.org | #27,651 | Amazon Route 53, Buy Me a Coffee, Font Awesome + 10 more | Find emails |
| ncsoft.com | #27,676 | Amazon Route 53, Envoy, Google Fonts + 4 more | Find emails |
| upd.edu.ph | #27,686 | AOS, Bootstrap, Fancybox + 12 more | Find emails |
| etracker.com | #27,693 | Cloudflare, Lodash, Nginx + 4 more | Find emails |
| harveynorman.com.au | #27,710 | Azure DNS, Imperva | Find emails |
| formzu.net | #27,752 | Bootstrap, Google Ads Conversion, Google Analytics + 11 more | Find emails |
| forcepoint.net | #27,754 | Drupal, Netlify, Next.js + 3 more | Find emails |
| uchealth.org | #27,769 | ActiveCampaign, Cloudflare Bot Management, Cloudflare Turnstile + 6 more | Find emails |
| tournamentsoftware.com | #27,779 | Microsoft 365, jQuery | Find emails |
| hanyang.ac.kr | #27,785 | AOS, Google Analytics, Google Fonts + 4 more | Find emails |
| ldoceonline.com | #27,841 | AOS, Amazon Advertising, AppNexus + 17 more | Find emails |
| capitecbank.co.za | #27,871 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| matbao.vn | #27,880 | ASP.NET, Google Workspace, Microsoft IIS | Find emails |
| uptodown.app | #27,931 | — | Find emails |
| cypack.com | #27,947 | Google Analytics, Lodash, Microsoft IIS + 3 more | Find emails |
| phoenixnap.com | #27,957 | ActiveCampaign, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| liv.ac.uk | #27,978 | Citrix NetScaler, Google Tag Manager, HTMX + 1 more | Find emails |
| biggogo.com | #27,988 | Alibaba Cloud DNS, Next.js, Nginx + 1 more | Find emails |
| chambers.com | #28,016 | Cloudflare, Cloudflare edge/CDN, Contentful + 6 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 →