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 |
|---|---|---|---|
| levix.nl | #250,984 | Microsoft 365, Nginx, reCAPTCHA + 1 more | Find emails |
| fzzixun.com | #250,997 | Citrix NetScaler, Next.js, React | Find emails |
| wertgarantie.de | #251,108 | Drupal, Google Tag Manager | Find emails |
| bell-sw.com |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #251,244 |
| Cloudflare, Cloudflare edge/CDN, Gatsby + 2 more |
| Find emails |
| providerexpress.com | #251,293 | — | Find emails |
| ottonova.de | #251,369 | Amazon CloudFront, Amazon Route 53, Nginx + 2 more | Find emails |
| fdnet.com | #251,438 | — | Find emails |
| gipnetworks.com | #251,441 | AOS, Adobe Fonts (Typekit), Google Analytics + 4 more | Find emails |
| lessonup.com | #251,538 | Cloudflare, Next.js, Prismic + 3 more | Find emails |
| t-m-net.de | #251,609 | Bootstrap, Font Awesome, Nginx + 4 more | Find emails |
| yoxuba.com | #251,643 | — | Find emails |
| iiests.ac.in | #251,644 | Next.js, Turbopack, React | Find emails |
| davaocity.gov.ph | #251,691 | Bootstrap, Font Awesome, Google Fonts + 9 more | Find emails |
| inda.hu | #251,719 | Meta Pixel, jQuery | Find emails |
| foscarini.com | #251,724 | Font Awesome, Foundation, Google Tag Manager + 8 more | Find emails |
| flpi.com | #251,725 | jQuery, jQuery UI | Find emails |
| avtopro.es | #251,734 | Azure DNS, Google Fonts, Google Tag Manager + 1 more | Find emails |
| buygenerics.com | #251,764 | Bootstrap, Cloudflare, DDoS-Guard + 6 more | Find emails |
| ecotricity.co.uk | #251,807 | Amazon CloudFront, Amazon Route 53, Bootstrap + 6 more | Find emails |
| tp.edu.sg | #251,812 | Adobe Experience Cloud (Launch), Akamai Edge DNS, Fastly + 11 more | Find emails |
| stateofohio.net | #251,880 | Google AdSense, GoDaddy | Find emails |
| dimanoinmano.it | #252,056 | Bootstrap, Font Awesome, Google Tag Manager + 4 more | Find emails |
| hostingserver.nl | #252,058 | Nginx | Find emails |
| fts368.com | #252,071 | ASP.NET, Bootstrap, Cloudflare edge/CDN + 1 more | Find emails |
| partshotlines.com | #252,075 | Google Analytics, Google Cloud DNS, Google Tag Manager + 1 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 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 →