108,758 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 |
|---|---|---|---|
| fing.com | #19,263 | Amazon Route 53, Cloudflare Bot Management, Cloudflare Turnstile + 18 more | Find emails |
| autel.com | #19,270 | Adobe Experience Cloud (Launch), Amazon Route 53, Google Tag Manager + 4 more | Find emails |
| hiroshima-u.ac.jp | #19,272 | Drupal, Fastly, Google Analytics + 4 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| dtn.com | #19,277 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| schoolsoft.se | #19,278 | Google Trust Services, Gravatar, Nginx + 3 more | Find emails |
| global.com | #19,285 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| sprzedajemy.pl | #19,299 | Amazon Route 53, DoubleClick (Google Ads), Google Publisher Tag + 5 more | Find emails |
| lottostar.co.za | #19,304 | Cloudflare, Google Fonts, Google Tag Manager + 9 more | Find emails |
| extremenetworks.com | #19,305 | Azure API Management, Azure DNS, DigiCert + 4 more | Find emails |
| innovasport.com | #19,312 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| 32red.com | #19,324 | Let's Encrypt, Emotion | Find emails |
| unb.ca | #19,332 | Apache, Bootstrap, DigiCert + 7 more | Find emails |
| rabobank.com | #19,334 | Akamai Bot Manager, Akamai Edge DNS, Express + 3 more | Find emails |
| rakuten.ne.jp | #19,359 | Akamai Bot Manager, Akamai edge/CDN, Apache + 2 more | Find emails |
| tvb.com | #19,367 | Akamai Edge DNS, Google Cloud, Google Trust Services | Find emails |
| skyscanner.fr | #19,375 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| tossinvest.com | #19,377 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 5 more | Find emails |
| food.gov.uk | #19,379 | Cloudflare, Fastly, Nginx + 2 more | Find emails |
| iseeme.com | #19,383 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| ulb.ac.be | #19,385 | Apache | Find emails |
| inegi.org.mx | #19,391 | ASP.NET, Azure DNS, Microsoft IIS + 1 more | Find emails |
| digitalcertvalidation.com | #19,396 | — | Find emails |
| ohio.edu | #19,405 | Adobe Fonts (Typekit), CrazyEgg, Drupal + 6 more | Find emails |
| retargetly.com | #19,410 | Amazon (ACM), Amazon CloudFront, Cloudflare + 5 more | Find emails |
| digital-id.my | #19,419 | Amazon Route 53, DigiCert, Google Analytics + 5 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →