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 |
|---|---|---|---|
| chaco.gob.ar | #75,155 | Amazon Route 53, Google Tag Manager, Nginx + 2 more | Find emails |
| colcampus.com | #75,160 | Google Analytics, Google Tag Manager, Nginx + 2 more | Find emails |
| minorhotels.com | #75,167 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 2 more | Find emails |
| #150 (Tranco) |
| Find emails |
| 5 | avast.com | #202 (Tranco) | Find emails |
| n2yo.com | #75,193 | Apache, DoubleClick (Google Ads), Fancybox + 12 more | Find emails |
| yourtv.com.au | #75,239 | Amazon Route 53, Express, Fastly + 5 more | Find emails |
| legifrance.gouv.fr | #75,256 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| imt-ip.pt | #75,297 | AOS, Bootstrap, Fancybox + 13 more | Find emails |
| corriereromagna.it | #75,306 | ConsentMo, DoubleClick (Google Ads), Font Awesome + 6 more | Find emails |
| sendmail.org | #75,319 | Drupal, Imperva, VWO | Find emails |
| yvesrocher.com.tr | #75,350 | Akamai Bot Manager, Akamai edge/CDN, Bazaarvoice + 2 more | Find emails |
| thecsrjournal.in | #75,395 | Apache, Font Awesome, Google AdSense + 9 more | Find emails |
| xchat.cz | #75,399 | Adobe Experience Cloud (Launch), Django, Google Analytics + 5 more | Find emails |
| darc.de | #75,408 | Apache, Fancybox, Leaflet + 3 more | Find emails |
| payco.com | #75,413 | Akamai Edge DNS, Google Analytics, Google Tag Manager + 1 more | Find emails |
| digitaluniversity.ac | #75,414 | AOS, Amazon Route 53, Bootstrap + 5 more | Find emails |
| bizportal.rs | #75,419 | Bootstrap, Cloudflare, Consentmanager.net + 14 more | Find emails |
| bcbsnc.com | #75,420 | Adobe Experience Cloud (Launch), Fastly, Microsoft 365 + 3 more | Find emails |
| alfamart.co.id | #75,435 | reCAPTCHA, reCAPTCHA Enterprise, reCAPTCHA v2 | Find emails |
| chaco.gov.ar | #75,476 | Amazon Route 53, Google Tag Manager, Nginx + 2 more | Find emails |
| uhauldealer.com | #75,485 | ASP.NET, CSC (Digital Brand Services), Font Awesome + 7 more | Find emails |
| masergy.com | #75,496 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 2 more | Find emails |
| bestchange.com | #75,499 | Cloudflare edge/CDN, Fastmail, PHP + 1 more | Find emails |
| howrse.de | #75,504 | Azure DNS, Nginx, Swiper + 1 more | Find emails |
| cloud-cdn.co | #75,515 | Amazon Route 53, Nginx | Find emails |
| sans.nl | #75,587 | Apache, Google Tag Manager, Microsoft 365 + 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →