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 |
|---|---|---|---|
| aerzteblatt.de | #16,496 | Amazon CloudFront, Google Tag Manager, Next.js + 4 more | Find emails |
| amgen.com | #16,513 | Adobe Fonts (Typekit), Amazon CloudFront, Bootstrap + 15 more | Find emails |
| viamichelin.fr | #16,541 | Azure Front Door, CSC (Digital Brand Services), Didomi + 4 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| airfrance.fr | #16,546 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 2 more | Find emails |
| phanet.de | #16,622 | — | Find emails |
| samsung-news.com | #16,636 | Amazon CloudFront, Amazon Route 53, Swiper + 3 more | Find emails |
| sandia.gov | #16,649 | WordPress, jQuery | Find emails |
| purplle.com | #16,669 | Amazon Route 53, OpenResty | Find emails |
| json.org | #16,737 | Apache | Find emails |
| fanniemae.com | #16,806 | Cloudflare Bot Management, Cloudflare edge/CDN, ConsentMo + 5 more | Find emails |
| netnames.net | #16,819 | Azure Front Door, Bootstrap, Google Tag Manager + 5 more | Find emails |
| mmc.com | #16,848 | Adobe Experience Manager Edge Delivery (Helix RUM), Amazon CloudFront, Apache + 5 more | Find emails |
| giveawayoftheday.com | #16,856 | Amazon Route 53, Google AdSense, Google Analytics + 11 more | Find emails |
| bigrock.com | #16,930 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| bitsdujour.com | #16,985 | ASP.NET, Amazon Route 53, Google AdSense + 5 more | Find emails |
| citizensbank.com | #16,988 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 9 more | Find emails |
| jisho.org | #17,007 | Auth0, Cloudflare edge/CDN, Nginx + 2 more | Find emails |
| webrootanywhere.com | #17,011 | Amazon Route 53, Google Tag Manager, Imperva + 4 more | Find emails |
| hometax.go.kr | #17,021 | — | Find emails |
| veepee.fr | #17,024 | Cloudflare Bot Management, Cloudflare edge/CDN, Next.js + 3 more | Find emails |
| zeno.fm | #17,057 | Amazon Route 53, Crisp | Find emails |
| scaleway.com | #17,074 | BunnyCDN, Cloudflare edge/CDN, Next.js + 2 more | Find emails |
| dataprev.gov.br | #17,078 | Drupal, Font Awesome, Microsoft 365 + 3 more | Find emails |
| husqvarna.com | #17,111 | Azure Front Door, CSC (Digital Brand Services), Google Tag Manager + 3 more | Find emails |
| ownit.se | #17,133 | Adobe Fonts (Typekit), Nginx, Rollup | 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 →