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 |
|---|---|---|---|
| easyjet.com | #3,928 | Akamai Bot Manager, Akamai Edge DNS, Microsoft 365 | Find emails |
| zenodo.org | #3,930 | Cloudflare, Matomo, Microsoft 365 + 2 more | Find emails |
| takeaway.com | #3,969 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #4,010 |
| Bootstrap, Font Awesome, Matomo + 4 more |
| Find emails |
| openoffice.org | #4,028 | Amazon Route 53 | Find emails |
| kia.com | #4,039 | Adobe Experience Cloud (Launch), Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| ivideon.com | #4,052 | Amazon Route 53, Google Fonts, PHP + 1 more | Find emails |
| elespanol.com | #4,066 | Amazon Route 53, Google Tag Manager | Find emails |
| anu.edu.au | #4,074 | Font Awesome, Microsoft 365, Nginx + 2 more | Find emails |
| spaceship.com | #4,079 | Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| evidon.com | #4,129 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| fnac.com | #4,138 | Akamai Edge DNS, DataDome, Microsoft 365 | Find emails |
| op.gg | #4,139 | Amazon CloudFront, Amazon Route 53, Next.js + 3 more | Find emails |
| consentmanager.net | #4,160 | Amazon Route 53, New Relic, Webpack | Find emails |
| dickssportinggoods.com | #4,162 | Akamai Bot Manager, Akamai edge/CDN, CSC (Digital Brand Services) | Find emails |
| ucsf.edu | #4,214 | Adobe Experience Cloud (Launch), Cloudflare edge/CDN, Drupal + 2 more | Find emails |
| sonicwall.com | #4,222 | Contentstack, Google Tag Manager, Imperva + 7 more | Find emails |
| nordstrom.com | #4,225 | Fastly, NS1, Varnish | Find emails |
| sky.it | #4,309 | Adobe Experience Cloud (Launch), Akamai Edge DNS, Amazon CloudFront + 4 more | Find emails |
| cbslocal.com | #4,360 | NS1, Varnish | Find emails |
| belkin.com | #4,390 | Amazon Pay, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| ebay.ca | #4,412 | Akamai Bot Manager, NS1 | Find emails |
| victoriassecret.com | #4,414 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| 20minutes.fr | #4,439 | Amazon CloudFront, Amazon Route 53, Cloudflare edge/CDN + 3 more | Find emails |
| ebay.com.au | #4,453 | Akamai Bot Manager, NS1 | 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 →