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 |
|---|---|---|---|
| lineadirecta.com | #65,592 | Akamai Edge DNS, Bootstrap, Imperva + 5 more | Find emails |
| semmelweis.hu | #65,604 | AddToAny, Apache, Font Awesome + 8 more | Find emails |
| prossl.de | #65,606 | Apache | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #65,620 |
| Adobe Experience Manager Edge Delivery (Helix RUM), Adobe Fonts (Typekit), Azure DNS + 14 more |
| Find emails |
| tiendanimal.es | #65,624 | Amazon CloudFront, Amazon Route 53, Cloudflare edge/CDN + 11 more | Find emails |
| stuki-druki.com | #65,710 | 24smi.net, Cloudflare, Google Analytics + 3 more | Find emails |
| apeuni.com | #65,717 | Alibaba Cloud DNS, Google Ads Conversion, Google Analytics + 8 more | Find emails |
| happynumbers.com | #65,777 | Google Fonts, OpenResty, React + 1 more | Find emails |
| oneidentity.com | #65,884 | AWS WAF, Amazon CloudFront, Azure DNS + 1 more | Find emails |
| firstshowing.net | #65,942 | Bluesky, Disqus, DoubleClick (Google Ads) + 8 more | Find emails |
| marriottbonvoy.com | #65,975 | Adobe Advertising Cloud, Adobe Audience Manager, Adobe Experience Cloud (Launch) + 23 more | Find emails |
| vezess.hu | #66,018 | All in One SEO, Amazon Route 53, Microsoft 365 + 4 more | Find emails |
| balticom.lv | #66,030 | Google Tag Manager, Nginx, reCAPTCHA + 1 more | Find emails |
| smm.cn | #66,073 | Baidu Analytics, Bootstrap, Google Analytics + 8 more | Find emails |
| oranum.com | #66,076 | Google Fonts, Google Identity Services, Google Tag Manager + 1 more | Find emails |
| freeyellow.com | #66,084 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| fgts.gov.br | #66,117 | Azion, Google Fonts, Nginx | Find emails |
| phr247.com | #66,139 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| nodo50.org | #66,239 | Nginx, Slick Carousel, jQuery | Find emails |
| vdi.de | #66,240 | Apache, FlagCDN, Google Tag Manager + 6 more | Find emails |
| bn.com.pe | #66,287 | Google Analytics, Google Tag Manager, Metricool + 3 more | Find emails |
| webclicks24.com | #66,314 | Nginx, PHP | Find emails |
| kra.co.kr | #66,333 | Swiper, jQuery, jQuery UI | Find emails |
| muthootfinance.com | #66,377 | AWS WAF, Amazon CloudFront, AWS WAF CAPTCHA | Find emails |
| medisoftware.org | #66,409 | Apache, Font Awesome, Slick Carousel + 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 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 →