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 |
|---|---|---|---|
| defensoria.gob.pe | #73,406 | Nginx | Find emails |
| novapay.ua | #73,429 | ASP.NET, Bootstrap, Cloudflare + 10 more | Find emails |
| fatmedia.io | #73,437 | Apache, AvantLink, Google Fonts + 2 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #73,462 |
| Apache, Fancybox, Font Awesome + 6 more |
| Find emails |
| markate.com | #73,506 | Apache, Blogger, Font Awesome + 12 more | Find emails |
| cuckoldsporn.com | #73,537 | Fancybox, Google Analytics, Google Tag Manager + 3 more | Find emails |
| ktk.de | #73,543 | Bootstrap, Gunicorn, Matomo + 3 more | Find emails |
| konnections.com | #73,567 | Apache, ShortPixel, WordPress | Find emails |
| malteskitchen.de | #73,568 | Apache, Google Analytics, Google Tag Manager + 4 more | Find emails |
| trophymanager.com | #73,579 | Google Analytics, Nginx, PHP + 3 more | Find emails |
| so-net.net.tw | #73,609 | Font Awesome, Google Ads Conversion, Google Analytics + 6 more | Find emails |
| list-org.com | #73,612 | Bootstrap, Font Awesome, Google Analytics + 3 more | Find emails |
| dwdl.de | #73,658 | Bluesky, Font Awesome, Nginx + 4 more | Find emails |
| khconf.com | #73,681 | Bootstrap, Font Awesome, Nginx + 2 more | Find emails |
| rekhtadictionary.com | #73,692 | ASP.NET, Nginx, GoDaddy | Find emails |
| didactalia.net | #73,712 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| undernavi.com | #73,742 | Amazon Route 53, Google Analytics, Google Hosted Libraries + 7 more | Find emails |
| ehoadon.vn | #73,746 | ASP.NET, Bootstrap, Cloudflare + 15 more | Find emails |
| univh2c.ma | #73,753 | ASP.NET, Microsoft IIS | Find emails |
| tadafi.com | #73,772 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| healthchecks.io | #73,777 | BunnyCDN, Cloudflare, Django + 5 more | Find emails |
| apsiyon.com | #73,803 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 1 more | Find emails |
| sitelock.com | #73,848 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Fonts + 4 more | Find emails |
| hoatieu.vn | #73,853 | ASP.NET, Cloudflare, Google Tag Manager + 1 more | Find emails |
| habitica.com | #73,858 | Express, Google Cloud DNS, Google Fonts | 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 →