SSL/TLS Certificates
30,905 of the 1,000,000 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 |
|---|---|---|---|
| cyut.edu.tw | #55,934 | Apache, Citrix NetScaler, Microsoft 365 + 1 more | Find emails |
| surfeasy.com | #55,966 | Adobe Experience Cloud (Launch), Akamai edge/CDN, Akamai mPulse + 5 more | Find emails |
| westgateresorts.com | #55,969 | Cloudflare, Google Fonts, Google Tag Manager + 5 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| ravelrycache.com | #56,013 | Nginx | Find emails |
| ug.edu.ec | #56,016 | Splide, WordPress | Find emails |
| connectmedia.hu | #56,026 | Google Fonts, Google Tag Manager, Microsoft 365 + 2 more | Find emails |
| plivo.com | #56,030 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 10 more | Find emails |
| unist.ac.kr | #56,055 | AOS, GSAP, Google Analytics + 9 more | Find emails |
| flat.io | #56,079 | Amazon Route 53, Cloudflare edge/CDN, Nginx + 2 more | Find emails |
| fnbo.com | #56,083 | Adobe Experience Cloud (Launch), BrightEdge, Fastly + 3 more | Find emails |
| satserver.nl | #56,121 | Apache, Google Analytics | Find emails |
| digitalcamp.co.kr | #56,152 | Google Tag Manager, Nginx, jQuery | Find emails |
| intellipopup.com | #56,253 | — | Find emails |
| aaaauto.cz | #56,254 | Microsoft 365 | Find emails |
| imshealth.com | #56,274 | Coveo, Google Fonts, Google Tag Manager + 3 more | Find emails |
| 4rgos.it | #56,285 | Akamai edge/CDN | Find emails |
| taxes.gov.il | #56,299 | Akamai Edge DNS, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| mycardplace.com | #56,337 | Amazon Route 53, Microsoft 365 | Find emails |
| info-retraite.fr | #56,361 | Angular | Find emails |
| gendigital.com | #56,365 | Adobe Experience Cloud (Launch), Ashby, Azure API Management + 11 more | Find emails |
| ahost.cloud | #56,395 | Drupal, Google Fonts, Meta Pixel + 1 more | Find emails |
| better.org.uk | #56,410 | Adobe Fonts (Typekit), Cloudflare Turnstile, Google Fonts + 10 more | Find emails |
| todostuslibros.com | #56,438 | Bootstrap, Font Awesome, Google Fonts + 10 more | Find emails |
| asiakastieto.fi | #56,451 | AddThis, Adform, Adobe Fonts (Typekit) + 15 more | Find emails |
| justice.gov.ma | #56,458 | Font Awesome, PHP, WordPress + 3 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →