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 |
|---|---|---|---|
| duke.edu | #2,286 | WordPress, Yoast SEO | Find emails |
| hoyoverse.com | #2,289 | Amazon CloudFront, DigiCert, Nginx + 2 more | Find emails |
| ninjarmm.com | #2,302 | 6sense, Amazon Advertising, Amazon Route 53 + 17 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| #2,303 |
| Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more |
| Find emails |
| utoronto.ca | #2,306 | Drupal, Fastly, Let's Encrypt + 5 more | Find emails |
| userway.org | #2,312 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| ucdavis.edu | #2,313 | ConsentMo, Drupal, Fastly + 6 more | Find emails |
| spectrum.com | #2,348 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 4 more | Find emails |
| rollingstone.com | #2,353 | Amazon Route 53, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| unc.edu | #2,359 | Adobe Fonts (Typekit), Fastly, Google Analytics + 10 more | Find emails |
| hbomax.com | #2,399 | Amazon Route 53, Google Tag Manager, Let's Encrypt + 2 more | Find emails |
| lww.com | #2,417 | ASP.NET, Amazon Route 53, Bootstrap + 9 more | Find emails |
| ssl.com | #2,421 | Amazon Route 53, ClickTale (Contentsquare), Font Awesome + 8 more | Find emails |
| splashtop.com | #2,432 | Amazon Route 53, Fastly, Let's Encrypt + 4 more | Find emails |
| sfgate.com | #2,436 | Fastly, Google Publisher Tag, New Relic + 4 more | Find emails |
| churnzero.net | #2,442 | Amazon Route 53, Fancybox, Google Trust Services + 7 more | Find emails |
| zend.com | #2,462 | Amazon Route 53, Drupal, Fastly + 9 more | Find emails |
| fanduel.com | #2,464 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| disney.com | #2,470 | Akamai Bot Manager, Let's Encrypt, New Relic + 2 more | Find emails |
| imf.org | #2,481 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 1 more | Find emails |
| geotrust.com | #2,497 | Adobe Experience Cloud (Launch), DigiCert, Fastly + 5 more | Find emails |
| sharepointonline.com | #2,503 | Azure DNS | Find emails |
| yammer.com | #2,513 | Akamai Edge DNS, Azure DNS | Find emails |
| hollywoodreporter.com | #2,515 | Amazon Route 53, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| abcnews.com | #2,526 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 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 →