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 |
|---|---|---|---|
| roularta.be | #72,979 | Google Fonts, Let's Encrypt, Nginx + 2 more | Find emails |
| gbets.co.za | #72,982 | Cloudflare Bot Management, Cloudflare edge/CDN, Criteo + 9 more | Find emails |
| digio.com.br | #72,985 | Amazon CloudFront, Amazon Route 53, DigiCert + 5 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| remita.net | #72,992 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| cbeyond.net | #72,999 | — | Find emails |
| webnode.it | #73,003 | Amazon Route 53, Convert, Envoy + 5 more | Find emails |
| jospt.org | #73,026 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| historylink.org | #73,038 | ASP.NET, Adobe Fonts (Typekit), Cloudflare + 7 more | Find emails |
| air-watch.com | #73,041 | Akamai Bot Manager, Amazon Route 53, Astro + 4 more | Find emails |
| harald-nyborg.dk | #73,067 | Google Tag Manager, styled-components | Find emails |
| jmouders.nl | #73,072 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| psauction.se | #73,084 | AWS WAF, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| comed.com | #73,088 | Azure DNS, DigiCert, Angular | Find emails |
| manchesterairport.co.uk | #73,104 | Amazon (ACM), Amazon CloudFront, Next.js + 1 more | Find emails |
| devon.gov.uk | #73,112 | Sucuri | Find emails |
| strefabiznesu.pl | #73,114 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 5 more | Find emails |
| alexandani.com | #73,119 | Amazon Route 53, Cloudflare edge/CDN, Klaviyo + 5 more | Find emails |
| cimulate.ai | #73,123 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| sift.co | #73,126 | Adobe Fonts (Typekit), Amazon Route 53, Axios + 5 more | Find emails |
| mo-online.com | #73,127 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| vezzi.pl | #73,129 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| lifespan.org | #73,138 | Cloudflare edge/CDN, Drupal, Google Tag Manager + 5 more | Find emails |
| efe.com.pe | #73,141 | Fastly, Let's Encrypt, New Relic + 1 more | Find emails |
| atmosphera.com | #73,143 | Google Cloud, Google Trust Services | Find emails |
| medicareaustralia.gov.au | #73,166 | Akamai Bot Manager, DigiCert, Drupal + 2 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 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 →