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 |
|---|---|---|---|
| viamichelin.es | #67,074 | Azure Front Door, CSC (Digital Brand Services), Didomi + 4 more | Find emails |
| growtopia2.com | #67,172 | Amazon Route 53, Amazon Web Services | Find emails |
| classplusapp.com | #67,180 | Cloudflare, Google Analytics, Google Tag Manager + 4 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| telephone.city | #67,182 | DataDome | Find emails |
| homecinema-fr.com | #67,183 | Apache, Fancybox, Font Awesome + 3 more | Find emails |
| lamanchelibre.fr | #67,217 | AT Internet, Apache, Consent Framework + 9 more | Find emails |
| spot.uz | #67,230 | Cloudflare, Google Tag Manager, Meta Pixel + 9 more | Find emails |
| susx.ac.uk | #67,234 | Apache, Modernizr, Vimeo + 1 more | Find emails |
| disneyredirects.com | #67,272 | Amazon Route 53, Nginx, Okta | Find emails |
| kiwoko.com | #67,322 | Amazon CloudFront, Amazon Route 53, Cloudflare edge/CDN + 9 more | Find emails |
| litter-robot.com | #67,342 | Affirm, Fastly, Google Maps + 7 more | Find emails |
| viabovag.nl | #67,387 | Azure API Management, ConsentMo, Contentful + 5 more | Find emails |
| cens.com | #67,420 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| webcore.cloud | #67,474 | Django, Font Awesome, Foundation + 7 more | Find emails |
| nola.gov | #67,502 | ASP.NET, Adobe Fonts, Adobe Fonts (Typekit) + 13 more | Find emails |
| intercom.it | #67,509 | Next.js, Nginx, Turbopack + 3 more | Find emails |
| generali.fr | #67,512 | CSC (Digital Brand Services), Drupal, Google Fonts + 2 more | Find emails |
| buchmesse.de | #67,533 | Drupal, Google Tag Manager, OneTrust | Find emails |
| intistele.com | #67,584 | AddToAny, Bitrix, Bootstrap + 11 more | Find emails |
| git.io | #67,589 | GitHub Pages, NS1 | Find emails |
| csj.gov.py | #67,614 | ASP.NET, Microsoft IIS | Find emails |
| valdosta.edu | #67,643 | AOS, Apache, Citrix NetScaler + 16 more | Find emails |
| qou.edu | #67,670 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| infomaniak.site | #67,674 | Gatsby, React | Find emails |
| press.lv | #67,697 | DoubleClick (Google Ads), Gemius, Google AdSense + 8 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 →