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 |
|---|---|---|---|
| avocat.fr | #49,363 | Drupal, Nginx | Find emails |
| habrastorage.org | #49,374 | Google Analytics, Qrator | Find emails |
| arcamax.com | #49,377 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 11 more | Find emails |
| tino.vn |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #49,398 |
| Google Fonts, Google Tag Manager, Livewire + 6 more |
| Find emails |
| ralphs.com | #49,445 | Akamai Bot Manager, Akamai edge/CDN | Find emails |
| magenta.at | #49,452 | Bootstrap, DoubleClick (Google Ads), Font Awesome + 7 more | Find emails |
| skhynix.com | #49,514 | Amazon CloudFront, Apache, D3.js + 9 more | Find emails |
| appcreator24.com | #49,551 | Font Awesome, Google Fonts, Google Identity Services + 9 more | Find emails |
| rmf.pl | #49,578 | Blockthrough, Bootstrap, DoubleClick (Google Ads) + 11 more | Find emails |
| mandai.com | #49,592 | Adobe Analytics, Adobe Experience Cloud (Launch), Adobe Target + 9 more | Find emails |
| hn.cz | #49,687 | Cloudflare, Google Tag Manager, Mailchimp + 3 more | Find emails |
| smallyy.com | #49,696 | Alibaba Cloud DNS, Next.js, Nginx + 1 more | Find emails |
| swizzonic.ch | #49,734 | Amazon CloudFront, Atlassian Statuspage, Bootstrap + 14 more | Find emails |
| biomerieux.com | #49,735 | Adobe Advertising Cloud, Adobe Analytics, Adobe Audience Manager + 26 more | Find emails |
| thomassabo.com | #49,747 | Cloudflare edge/CDN, Microsoft Clarity, PowerReviews + 2 more | Find emails |
| geoedge.com | #49,766 | Amazon Route 53, Google Fonts, Microsoft 365 + 4 more | Find emails |
| pse.com | #49,779 | ASP.NET, Amazon CloudFront, Apache + 11 more | Find emails |
| crpf.gov.in | #49,833 | Bootstrap, Fancybox, Google Analytics + 4 more | Find emails |
| serpstat.com | #49,834 | Cloudflare, Express, Google Fonts + 4 more | Find emails |
| lee.com | #49,878 | Azure DNS, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| schuh.co.uk | #49,898 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| sabacloud.com | #49,952 | NS1 | Find emails |
| mailplug.com | #49,967 | Google Ads Conversion, Google Analytics, Google Tag Manager + 5 more | Find emails |
| cycling74.com | #49,970 | Amazon CloudFront, Cloudflare, Gravatar + 10 more | Find emails |
| bipm.org | #49,994 | Apache, Bootstrap, Google Analytics + 6 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 →