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 |
|---|---|---|---|
| adition.com | #3,181 | — | Find emails |
| allstate.com | #3,193 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 3 more | Find emails |
| unep.org | #3,209 | Azure DNS, ClickTale (Contentsquare), Cloudflare edge/CDN + 6 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| siteimproveanalytics.io |
| #3,212 |
| Amazon Route 53 |
| Find emails |
| stackdns.com | #3,222 | — | Find emails |
| webgo.de | #3,224 | Font Awesome, Microsoft Clarity, Nginx + 3 more | Find emails |
| ml314.com | #3,228 | Amazon Route 53, Google Trust Services | Find emails |
| scopus.com | #3,249 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| threatlocker.com | #3,255 | Adobe Fonts (Typekit), Amazon Route 53, BrightEdge + 9 more | Find emails |
| deadline.com | #3,283 | Adobe Fonts (Typekit), Amazon Route 53, Let's Encrypt + 3 more | Find emails |
| streamtheworld.com | #3,291 | Google Fonts | Find emails |
| redbull.com | #3,301 | Sectigo | Find emails |
| lavanguardia.com | #3,304 | Akamai Edge DNS, Criteo, DigiCert + 3 more | Find emails |
| asos.com | #3,311 | Akamai Bot Manager, Akamai Edge DNS, Akamai mPulse + 6 more | Find emails |
| digitaltrends.com | #3,320 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| nobelprize.org | #3,323 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| hrw.org | #3,334 | Adobe Fonts (Typekit), Azure DNS, Drupal + 6 more | Find emails |
| handelsblatt.com | #3,347 | Cloudflare, DigiCert, Angular | Find emails |
| apptentive.com | #3,355 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| chron.com | #3,366 | Fastly, Google Publisher Tag, New Relic + 4 more | Find emails |
| ipcc.ch | #3,368 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| aa.com | #3,369 | Akamai Edge DNS | Find emails |
| indiana.edu | #3,394 | Google Fonts, Google Tag Manager, unpkg | Find emails |
| idealo.de | #3,395 | Akamai Bot Manager, Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| sas.com | #3,400 | DigiCert | 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 →