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 |
|---|---|---|---|
| plan.io | #141,642 | Campaign Monitor, Feedburner, Google Ads Conversion + 7 more | Find emails |
| globalhosting247.com | #141,651 | Font Awesome, Google Analytics, Google Tag Manager + 8 more | Find emails |
| lkz.de | #141,701 | Eye-Able, Google Tag Manager, Taboola + 3 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| futbolmania.com | #141,719 | Cloudflare, Cloudflare edge/CDN, Doofinder + 12 more | Find emails |
| chanced.com | #141,724 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| serenity.co.uk | #141,765 | ASP.NET, Amazon Route 53, Google Hosted Libraries + 6 more | Find emails |
| salford.gov.uk | #141,799 | ASP.NET, Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| ar.gov | #141,810 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Fonts + 3 more | Find emails |
| nsoft.it | #141,854 | ConsentMo, Font Awesome, Nginx + 9 more | Find emails |
| help.ch | #141,916 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| juusho.com | #141,932 | Apache | Find emails |
| agents-lab.org | #141,941 | LiteSpeed, PHP | Find emails |
| ifce.fr | #141,949 | Imperva | Find emails |
| graalonline.com | #141,952 | Cloudflare, Google Fonts, Netlify | Find emails |
| cdti.es | #141,957 | Amazon Route 53, Imperva, Microsoft 365 | Find emails |
| kwf.nl | #141,958 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 7 more | Find emails |
| krisshop.com | #141,976 | Adobe Experience Cloud (Launch), Akamai Edge DNS, Fastly + 7 more | Find emails |
| odalys-vacances.com | #141,979 | ASP.NET, Criteo, Didomi + 4 more | Find emails |
| animalis.com | #142,002 | Amazon CloudFront, Cloudflare edge/CDN, Google Maps + 8 more | Find emails |
| 1shoppingcart.com | #142,004 | Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| jfree.org | #142,027 | Nginx | Find emails |
| yextpages.net | #142,030 | Amazon Route 53, Google Cloud DNS, Nginx | Find emails |
| adex.com | #142,093 | Amazon Route 53, PHP, Qrator | Find emails |
| rbcbank.com | #142,139 | Akamai edge/CDN, Bootstrap, Google Tag Manager + 4 more | Find emails |
| mientaynet.com | #142,164 | Apache, Bootstrap, Font Awesome + 7 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 →