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 |
|---|---|---|---|
| ons-dossier.nl | #157,831 | Nginx | Find emails |
| taklope.com | #157,929 | Algolia, Avis Vérifiés, Cloudflare + 4 more | Find emails |
| fidlar.com | #158,044 | ASP.NET, Microsoft IIS, NS1 | Find emails |
| placard.pt |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #158,130 |
| Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more |
| Find emails |
| inlive.co.kr | #158,155 | Apache | Find emails |
| mueller.at | #158,174 | Fastly, Google Tag Manager, Next.js + 4 more | Find emails |
| kdzn.top | #158,185 | Alibaba Cloud DNS, Nginx | Find emails |
| unima.ac.id | #158,204 | Bootstrap, DataTables, Google Fonts + 3 more | Find emails |
| tunepocket.com | #158,222 | Apache, Google Ads Conversion, Google Analytics + 7 more | Find emails |
| estense.com | #158,269 | All in One SEO, Divi, DoubleClick (Google Ads) + 8 more | Find emails |
| fredoneverything.org | #158,274 | CanvasJS, Google Fonts, LiteSpeed + 3 more | Find emails |
| healthmarkets.com | #158,276 | Fastly, jQuery, Adobe Experience Manager | Find emails |
| sns24.gov.pt | #158,283 | Azure Front Door, Bootstrap, CookieHub + 6 more | Find emails |
| espn.com.uy | #158,292 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| telering.at | #158,354 | DoubleClick (Google Ads), Google Analytics, Krux (Salesforce Audience Studio) + 3 more | Find emails |
| saatchi-gallery.co.uk | #158,399 | All in One SEO, Bootstrap, Cloudflare edge/CDN + 16 more | Find emails |
| excel.london | #158,427 | Google Fonts, LiteSpeed, PHP + 1 more | Find emails |
| mdm.de | #158,516 | Nuxt.js, Vue.js | Find emails |
| xactus360.com | #158,544 | Amazon Route 53, Google Fonts, jQuery + 1 more | Find emails |
| reading.gov.uk | #158,562 | Cludo, Microsoft Clarity, Nginx + 4 more | Find emails |
| buzzrx.com | #158,618 | Amazon CloudFront, Amazon Route 53, AppsFlyer + 9 more | Find emails |
| intel.ru | #158,659 | Akamai Bot Manager, Akamai edge/CDN, Apache + 6 more | Find emails |
| inappstory.com | #158,704 | Cloudflare Web Analytics, Google Tag Manager, HubSpot + 6 more | Find emails |
| lottostrategies.com | #158,778 | Apache, Google AdSense, Google Analytics + 3 more | Find emails |
| kemenlh.go.id | #158,799 | Apache, Bootstrap, Font Awesome + 8 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 →