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 |
|---|---|---|---|
| 20minutes.fr | #4,439 | Amazon CloudFront, Amazon Route 53, Cloudflare edge/CDN + 3 more | Find emails |
| ebay.com.au | #4,453 | Akamai Bot Manager, Akamai edge/CDN, NS1 | Find emails |
| rome2rio.com | #4,477 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| homestead.com |
| #4,499 |
| Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more |
| Find emails |
| meteofrance.com | #4,500 | Bluesky, Didomi, Drupal + 1 more | Find emails |
| everydayhealth.com | #4,516 | Amazon Advertising, Amazon Route 53, Google Fonts + 6 more | Find emails |
| zappos.com | #4,527 | Akamai Edge DNS, Google Tag Manager, Next.js + 2 more | Find emails |
| otzovik.com | #4,549 | Nginx, PHP | Find emails |
| ct.gov | #4,600 | Adobe Fonts (Typekit), Azure Front Door, Google Analytics + 4 more | Find emails |
| nationalarchives.gov.uk | #4,608 | Adobe Fonts (Typekit), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| spec.org | #4,624 | Apache, Google Fonts, Hugo | Find emails |
| westernunion.com | #4,672 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai edge/CDN + 15 more | Find emails |
| kroger.com | #4,708 | Akamai Bot Manager, Akamai edge/CDN | Find emails |
| vcmdiawe.com | #4,753 | Cloudflare | Find emails |
| lufthansa.com | #4,754 | Cloudflare Bot Management, Cloudflare Web Analytics, Cloudflare edge/CDN | Find emails |
| windstream.net | #4,791 | Google Tag Manager, Microsoft Clarity, Nginx + 2 more | Find emails |
| depositphotos.com | #4,846 | Google Analytics, Google Tag Manager, Meta Pixel | Find emails |
| ghcr.io | #4,848 | Contentful, GitHub, GitHub Pages + 2 more | Find emails |
| infomaniak.ch | #4,859 | Gatsby, React | Find emails |
| knowyourmeme.com | #4,864 | Chartbeat, Cloudflare edge/CDN, Google Analytics + 5 more | Find emails |
| ameli.fr | #4,878 | CSC (Digital Brand Services), Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| 11st.co.kr | #4,880 | Amazon Route 53, Daum, Google Ads Conversion + 5 more | Find emails |
| theage.com.au | #4,890 | Amazon Route 53, DoubleClick (Google Ads), Fastly + 5 more | Find emails |
| 3m.com | #4,909 | Akamai Bot Manager, Akamai edge/CDN, Apache + 11 more | Find emails |
| softpedia.com | #4,910 | Cloudflare edge/CDN | 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 →