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 |
|---|---|---|---|
| pelotalibretv2.pl | #11,336 | Imperva | Find emails |
| esputnik.com | #11,459 | Amazon Route 53, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| nordstromrack.com | #11,475 | Fastly, NS1, Varnish | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #11,509 |
| AppsFlyer, Azion, Criteo + 17 more |
| Find emails |
| restaurantguru.com | #11,533 | Cloudflare, Google AdSense, Google Ads Conversion + 6 more | Find emails |
| antagus.de | #11,551 | Apache, Font Awesome, Matomo + 2 more | Find emails |
| etix.com | #11,553 | AWS WAF, Amazon Route 53, Amazon Web Services + 1 more | Find emails |
| insee.fr | #11,563 | Bluesky, Google Fonts, HTMX + 5 more | Find emails |
| plaync.com | #11,574 | Amazon Route 53, Envoy, Microsoft 365 | Find emails |
| santander.co.uk | #11,576 | Adobe Experience Cloud (Launch), CSC (Digital Brand Services), Imperva + 2 more | Find emails |
| glance.com | #11,639 | AppsFlyer, FlagCDN, Google Cloud DNS + 4 more | Find emails |
| alarm.com | #11,646 | ASP.NET, Bootstrap, Google Fonts + 4 more | Find emails |
| zippia.com | #11,650 | Amazon Route 53, Google Fonts, Next.js + 3 more | Find emails |
| bloomingdales.com | #11,683 | Akamai Edge DNS, Akamai mPulse, FullStory | Find emails |
| commbank.com.au | #11,739 | Adobe Audience Manager, Adobe Experience Manager Edge Delivery (Helix RUM), Amazon Route 53 + 12 more | Find emails |
| jdpower.com | #11,799 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| chula.ac.th | #11,852 | Google Analytics, Google Tag Manager, Imperva + 2 more | Find emails |
| belka-games.com | #11,894 | Cookie-Script, Google Analytics, Google Tag Manager + 3 more | Find emails |
| ccleaner.com | #11,903 | Adobe Experience Cloud (Launch), Akamai edge/CDN, Akamai mPulse + 10 more | Find emails |
| autoevolution.com | #11,906 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| dvrlists.com | #11,921 | ASP.NET, Google Analytics, Google Fonts + 6 more | Find emails |
| rawgit.com | #11,962 | Cloudflare, Cloudflare edge/CDN, GitHub + 1 more | Find emails |
| cloudfilter.net | #11,982 | Drupal, Google Analytics, Google Tag Manager + 5 more | Find emails |
| elcompanies.com | #11,989 | AppsFlyer, Bootstrap, Cloudflare Bot Management + 10 more | Find emails |
| bitmovin.com | #11,993 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →