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 |
|---|---|---|---|
| nsf.org | #23,509 | Amazon Route 53, Azure Front Door, Bootstrap + 14 more | Find emails |
| jps.go.cr | #23,515 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| sedgwick.com | #23,546 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare Bot Management + 7 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| i24news.tv | #23,550 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| usitc.gov | #23,551 | Akamai Edge DNS, Akamai edge/CDN, Akamai mPulse + 8 more | Find emails |
| massey.ac.nz | #23,564 | Amazon (ACM), Amazon CloudFront, Google Tag Manager + 1 more | Find emails |
| sharecare.com | #23,569 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), Amazon Route 53 + 10 more | Find emails |
| sciencemuseum.org.uk | #23,573 | ASP.NET, Bluesky, Cloudflare + 14 more | Find emails |
| seedonk.com | #23,588 | Amazon Route 53, Apache, Sectigo | Find emails |
| pan.pl | #23,593 | Apache, Bluesky, Google Analytics + 4 more | Find emails |
| msgamestudios.com | #23,600 | Azure DNS | Find emails |
| canon-europe.com | #23,608 | Akamai Edge DNS, Akamai edge/CDN, Akamai mPulse + 12 more | Find emails |
| cccs.edu | #23,614 | Amazon CloudFront, Cloudflare, Cloudflare Bot Management + 13 more | Find emails |
| mobisafar.com | #23,625 | ASP.NET, Bootstrap, Font Awesome + 11 more | Find emails |
| app.delivery | #23,631 | Cloudflare | Find emails |
| eventossistema.com.mx | #23,685 | ASP.NET, Microsoft IIS | Find emails |
| nepalcanmove.com | #23,702 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| ccsd.net | #23,738 | Cloudflare Web Analytics, Cloudflare edge/CDN, Finalsite + 8 more | Find emails |
| doterra.com | #23,739 | Amazon Route 53, Google Analytics, Google Tag Manager + 1 more | Find emails |
| urjc.es | #23,742 | Apache, Bootstrap, CookieFirst + 9 more | Find emails |
| dbschenker.com | #23,749 | Adobe Experience Cloud (Launch), Amazon CloudFront, Amazon S3 + 6 more | Find emails |
| lavasoft.com | #23,754 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 3 more | Find emails |
| displate.com | #23,756 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| unf.edu | #23,759 | Apache, Google Analytics, Google Fonts + 4 more | Find emails |
| mapyourshow.com | #23,764 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 15 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 →