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.
| # | 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 |
|---|---|---|---|
| payplay.fm | #223,900 | Nginx, Twitter/X Widgets, jQuery | Find emails |
| univ-boumerdes.dz | #223,907 | Apache, PHP, jQuery | Find emails |
| 37486133.xyz | #223,928 | LiteSpeed, WordPress | Find emails |
| huaventures.com |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #223,944 |
| Nginx, PHP, jQuery |
| Find emails |
| departement13.fr | #223,957 | Apache, Drupal, Matomo + 4 more | Find emails |
| crimemapping.com | #223,960 | AngularJS, Azure DNS, Google Analytics + 3 more | Find emails |
| current-vacancies.com | #224,004 | ASP.NET, Amazon Route 53, Bootstrap + 4 more | Find emails |
| consumersunion.org | #224,066 | Amazon CloudFront, Bootstrap, Google Hosted Libraries + 8 more | Find emails |
| wheeloutlet.com | #224,069 | Apache, Microsoft 365 | Find emails |
| junkolive.com | #224,076 | Cloudflare | Find emails |
| 37486136.xyz | #224,091 | LiteSpeed, WordPress | Find emails |
| branch-networks.com | #224,092 | Apache, Font Awesome, Google Fonts + 3 more | Find emails |
| csc.lv | #224,120 | Cloudflare Turnstile, Fancybox, Google Ads Conversion + 9 more | Find emails |
| vogelwarte.ch | #224,142 | Adobe Fonts (Typekit), Apache, Cloudflare Turnstile + 10 more | Find emails |
| topdoglive.com | #224,163 | Amazon Route 53, Bootstrap, Font Awesome + 12 more | Find emails |
| surfmusik.de | #224,211 | DoubleClick (Google Ads), Google AdSense, Google Publisher Tag + 5 more | Find emails |
| 37486132.xyz | #224,237 | LiteSpeed, WordPress | Find emails |
| urldefense.us | #224,263 | — | Find emails |
| cross-stitch-corner.de | #224,264 | Google Tag Manager, Nginx, PHP + 1 more | Find emails |
| azamedia.com | #224,283 | Bootstrap, Cookiebot, Font Awesome + 15 more | Find emails |
| jiepei.com | #224,336 | Tengine | Find emails |
| webasyst.cloud | #224,350 | Nginx, Yandex Metrica | Find emails |
| weberhaus.de | #224,394 | Amazon Route 53, Pinterest Tag, TYPO3 + 3 more | Find emails |
| ip-secrets.com | #224,407 | Apache, Matomo | Find emails |
| statistik-bw.de | #224,449 | TYPO3 | 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 →