SSL/TLS Certificates
30,031 of the 965,200 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 |
|---|---|---|---|
| lidovky.cz | #29,947 | Google Tag Manager | Find emails |
| dailypay.com | #29,949 | AOS, Amazon Route 53, Amplitude + 18 more | Find emails |
| transip.net | #30,009 | Nginx | Find emails |
| freedomscientific.com |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| #30,022 |
| Bootstrap, Cloudflare, Cloudflare Bot Management + 8 more |
| Find emails |
| netdirekt.com.tr | #30,052 | Bootstrap, Font Awesome, Google Fonts + 2 more | Find emails |
| bidfuse.com | #30,069 | Google Analytics, Google Fonts, Google Tag Manager + 4 more | Find emails |
| iitk.ac.in | #30,086 | Swiper | Find emails |
| weser-kurier.de | #30,106 | Disqus, Google Analytics, Google Tag Manager | Find emails |
| topgolf.com | #30,160 | Amazon Route 53, Dynamic Yield, Microsoft 365 + 5 more | Find emails |
| totalchoicehosting.com | #30,180 | WordPress | Find emails |
| megawin-casino.net | #30,196 | Google Analytics, Google Fonts, Google Tag Manager | Find emails |
| espn.com.au | #30,216 | AWS WAF, Amazon CloudFront, Amazon Route 53 | Find emails |
| codetwo.com | #30,289 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 5 more | Find emails |
| zohohost.com | #30,322 | — | Find emails |
| storm-pro.net | #30,332 | — | Find emails |
| iol.it | #30,360 | Amazon CloudFront, Bootstrap, Google Tag Manager + 8 more | Find emails |
| hubstudio.com | #30,366 | Citrix NetScaler, Microsoft Clarity, Next.js + 3 more | Find emails |
| tradekey.com | #30,367 | Bootstrap, Google Ads Conversion, Google Analytics + 5 more | Find emails |
| esmadrid.com | #30,393 | Adobe Fonts (Typekit), Drupal, Google Publisher Tag + 2 more | Find emails |
| disneyworld.eu | #30,407 | Akamai Bot Manager, Astro | Find emails |
| sidefx.com | #30,430 | Amazon Route 53, Bootstrap, Django + 9 more | Find emails |
| gymmasteronline.com | #30,440 | jQuery | Find emails |
| websupport.cz | #30,468 | Nginx, WordPress, AccessiBe + 1 more | Find emails |
| carto.com | #30,494 | Amazon Route 53, Google Cloud DNS, Google Fonts + 5 more | Find emails |
| stooq.com | #30,497 | OpenResty | 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →