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 |
|---|---|---|---|
| hva.nl | #68,580 | Cloudflare edge/CDN, Cookiebot, Drupal + 2 more | Find emails |
| vndoc.com | #68,581 | ASP.NET, Cloudflare, Microsoft IIS | Find emails |
| constant.com | #68,591 | Ashby, Cloudflare Bot Management, Cloudflare Turnstile + 7 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #68,592 |
| ASP.NET, Cloudflare edge/CDN, Google Fonts + 2 more |
| Find emails |
| capitec.com | #68,607 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| honest.com | #68,612 | Amazon Route 53, Cloudflare edge/CDN, Shopify + 1 more | Find emails |
| hq-sex-tube.com | #68,635 | Nginx | Find emails |
| flip.ro | #68,663 | Cookiebot, DoubleClick (Google Ads), Google Cloud + 10 more | Find emails |
| ihned.cz | #68,665 | Cloudflare, Google Tag Manager, Nginx + 2 more | Find emails |
| sipag.com.br | #68,701 | Bootstrap, Cloudflare Bot Management, Cloudflare Web Analytics + 12 more | Find emails |
| uni-miskolc.hu | #68,710 | Google Analytics, Google Tag Manager, Hotjar + 8 more | Find emails |
| tetsudo.com | #68,725 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 12 more | Find emails |
| uniube.br | #68,732 | Azure DNS, Google Analytics, Google Tag Manager + 1 more | Find emails |
| bod.de | #68,755 | Apache, CookieFirst, Google Tag Manager + 8 more | Find emails |
| team.blue | #68,758 | Nginx | Find emails |
| imperiaonline.org | #68,791 | Didomi, DoubleClick (Google Ads), Google Ads Conversion + 7 more | Find emails |
| meteo.cat | #68,807 | Amazon Route 53, Apache, Fastly + 4 more | Find emails |
| lostshorts.com | #68,833 | ExoClick, Google Fonts, Namecheap + 1 more | Find emails |
| web-2-tel.com | #68,859 | Azure API Management, Azure DNS, Azure Front Door | Find emails |
| meendorux.net | #68,880 | Bootstrap, Cloudflare, Google Analytics + 6 more | Find emails |
| tjpa.jus.br | #68,925 | Apache, Bootstrap, Feedburner + 5 more | Find emails |
| bettingclosed.com | #68,975 | Font Awesome, Google AdSense, Google Analytics + 6 more | Find emails |
| gsmpunt.nl | #68,989 | Google Analytics, Google Tag Manager, Microsoft 365 + 2 more | Find emails |
| ralphlauren.co.jp | #68,998 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai edge/CDN + 12 more | Find emails |
| nnz-online.de | #69,018 | Apache, Font Awesome, Google AdSense + 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-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →