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.
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 |
|---|---|---|---|
| mega.co.nz | #739 | — | Find emails |
| 33across.com | #798 | Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| sedo.com | #804 | Cloudflare, Cloudflare edge/CDN, Google Workspace + 2 more | Find emails |
| disqus.com |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #818 |
| Amazon Route 53, Microsoft 365, Nginx + 1 more |
| Find emails |
| hostgator.com.br | #827 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| zoho.com | #835 | Zoho Mail | Find emails |
| ebay.co.uk | #852 | Akamai Bot Manager, NS1 | Find emails |
| ebay.de | #866 | Akamai Bot Manager, NS1 | Find emails |
| xvideos.com | #874 | Nginx | Find emails |
| lowes.com | #945 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 4 more | Find emails |
| corriere.it | #949 | AppsFlyer, Fastly, Google Publisher Tag + 4 more | Find emails |
| xnxx.com | #953 | Nginx | Find emails |
| nic.io | #962 | Font Awesome, Google Analytics, Nginx | Find emails |
| caixa.gov.br | #968 | Microsoft 365 | Find emails |
| elmundo.es | #973 | Amazon Advertising, Azure DNS, Fastly + 4 more | Find emails |
| xerox.com | #996 | Contentful, Google Tag Manager | Find emails |
| marca.com | #1,050 | Amazon Advertising, Azure DNS, Fastly + 4 more | Find emails |
| sentinelone.net | #1,052 | Amazon Route 53, Envoy | Find emails |
| idnes.cz | #1,087 | Google Tag Manager | Find emails |
| hostinger.com | #1,099 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Fonts + 5 more | Find emails |
| kicker.de | #1,172 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| sectigo.com | #1,187 | Cloudflare Bot Management, Cloudflare edge/CDN, Drift + 11 more | Find emails |
| indiamart.com | #1,189 | Amazon Route 53, Google Tag Manager | Find emails |
| gazzetta.it | #1,234 | Google Publisher Tag, Google Tag Manager, Krux (Salesforce Audience Studio) + 2 more | Find emails |
| argos.co.uk | #1,247 | Akamai edge/CDN | 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 →