104,545 of the 965,200 top sites in our Tranco top-1M census run Microsoft 365 (10.8%). Microsoft's subscription suite of productivity apps and services, including Exchange Online email hosting. Detection is homepage-level HTML/header fingerprinting, so a site can run Microsoft 365 on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | microsoft.com | #6 (Tranco) | Find emails |
| 2 | azure.com | #26 (Tranco) | Find emails |
| 3 | github.com | #29 (Tranco) | Find emails |
| 4 | bing.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| flatpay.com | #60,457 | Amazon Route 53, Bootstrap, Cloudflare edge/CDN + 7 more | Find emails |
| voyage-prive.com | #60,460 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| enthuse.com | #60,469 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| kcet.org | #60,472 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| securicentrix.com | #60,476 | Cloudflare, Google Fonts, Google Tag Manager + 6 more | Find emails |
| estately.com | #60,489 | Amazon (ACM), Amazon Route 53, Google Maps + 6 more | Find emails |
| forbes.es | #60,490 | Cloudflare, Font Awesome, Google Analytics + 7 more | Find emails |
| cascadedesigns.com | #60,491 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| idcfcloud.net | #60,497 | — | Find emails |
| mrvegas.com | #60,505 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| brolos.com.au | #60,515 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| servientrega.com | #60,522 | Akamai mPulse, DigiCert | Find emails |
| uninorte.edu.co | #60,524 | Amazon Route 53, Bootstrap, DigiCert + 10 more | Find emails |
| blog.cz | #60,528 | — | Find emails |
| clouditalia.com | #60,537 | DigiCert, Google Fonts, jQuery | Find emails |
| ssm.com.my | #60,543 | ASP.NET, Bootstrap, Font Awesome + 3 more | Find emails |
| arenabreakoutinfinite.com | #60,550 | DigiCert | Find emails |
| americanlisted.com | #60,556 | — | Find emails |
| defimedia.info | #60,557 | Cloudflare, Cloudflare edge/CDN, Drupal + 9 more | Find emails |
| enpal.de | #60,558 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| zyn.com | #60,564 | ASP.NET, Akamai Edge DNS, Cloudflare edge/CDN + 9 more | Find emails |
| ordercloud.io | #60,572 | Azure DNS, DigiCert, Next.js + 4 more | Find emails |
| webfleet.com | #60,579 | Akamai mPulse, Azure DNS, DigiCert + 7 more | Find emails |
| al-anon.org | #60,580 | Font Awesome, Google Fonts, Sucuri + 2 more | Find emails |
| skyscanner.co.kr | #60,587 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | 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 →