108,582 of the 1,000,000 top sites in our Tranco top-1M census run Microsoft 365 (10.9%). 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 |
|---|---|---|---|
| ussoccer.com | #34,048 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| rmi.org | #34,049 | Bluesky, CookieYes, Fastly + 13 more | Find emails |
| knack.be | #34,054 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| buschgardens.com |
| #34,061 |
| ASP.NET, Azure API Management, Cloudflare + 8 more |
| Find emails |
| titan007.com | #34,076 | jQuery | Find emails |
| wgtn.ac.nz | #34,080 | ASP.NET, Amazon Route 53, Bootstrap + 9 more | Find emails |
| hi3gaccess.se | #34,081 | Azure Front Door | Find emails |
| pchelpsoft.com | #34,089 | Bootstrap, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| eidos.com | #34,119 | Amazon Route 53, BugHerd, DigitalOcean Spaces + 11 more | Find emails |
| giacom.net | #34,125 | — | Find emails |
| cast.org | #34,130 | CookieYes, Fastly, Foundation + 12 more | Find emails |
| specialolympics.org | #34,138 | Amazon (ACM), Amazon CloudFront, Azure DNS + 8 more | Find emails |
| petrobras.com.br | #34,155 | Amazon Route 53, Bootstrap, Google Tag Manager + 4 more | Find emails |
| artbasel.com | #34,163 | Azure DNS, Cloudinary, DigiCert + 5 more | Find emails |
| mu.edu | #34,170 | Apache, Bootstrap, Font Awesome + 5 more | Find emails |
| katv.com | #34,171 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| travelbook.de | #34,174 | Akamai Edge DNS, Let's Encrypt, Nginx + 2 more | Find emails |
| bollywoodhungama.com | #34,180 | Akamai edge/CDN, Akamai mPulse, Amazon Route 53 + 13 more | Find emails |
| durham.ac.uk | #34,184 | AOS, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| penguin.de | #34,186 | DigiCert, Friendly Captcha, Nginx | Find emails |
| nexon.io | #34,188 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 4 more | Find emails |
| bruegel.org | #34,201 | Adobe Fonts (Typekit), Bluesky, Cloudflare + 8 more | Find emails |
| ghgprotocol.org | #34,209 | AddToAny, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| nflshop.com | #34,210 | Akamai Bot Manager, Akamai edge/CDN, Apple Pay + 6 more | Find emails |
| 3dsystems.com | #34,223 | Cloudflare Turnstile, Drupal, Fastly + 10 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 →