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 |
|---|---|---|---|
| microsoft.com | #6 | ASP.NET, Adobe Experience Manager Edge Delivery (Helix RUM), Akamai edge/CDN + 11 more | Find emails |
| azure.com | #26 | Adobe Experience Manager Edge Delivery (Helix RUM), Akamai edge/CDN, Akamai mPulse + 6 more | Find emails |
| github.com | #29 | Amazon Route 53, Contentful, GitHub + 5 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| bing.com | #30 | Azure DNS, NS1 | Find emails |
| microsoftonline.com | #38 | Azure DNS | Find emails |
| digicert.com | #44 | Adobe Experience Cloud (Launch), DigiCert, Fastly + 5 more | Find emails |
| skype.com | #45 | Azure DNS | Find emails |
| sharepoint.com | #46 | Adobe Experience Manager Edge Delivery (Helix RUM), Azure DNS, Azure Front Door + 4 more | Find emails |
| adobe.com | #64 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 3 more | Find emails |
| europa.eu | #111 | Amazon (ACM), Amazon CloudFront, Drupal + 1 more | Find emails |
| godaddy.com | #145 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN | Find emails |
| 3gppnetwork.org | #166 | — | Find emails |
| macromedia.com | #169 | Akamai Edge DNS, DigiCert, Fastly + 1 more | Find emails |
| cnn.com | #191 | Amazon Route 53, AppNexus, DoubleClick (Google Ads) + 6 more | Find emails |
| avast.com | #202 | Adobe Advertising Cloud, Adobe Audience Manager, Adobe Experience Cloud (Launch) + 10 more | Find emails |
| pubmatic.com | #207 | Amazon (ACM), Amazon CloudFront, Bootstrap + 17 more | Find emails |
| cpanel.net | #209 | AddToAny, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| sciencedirect.com | #216 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| mit.edu | #225 | Akamai Edge DNS, Akamai edge/CDN, Apache + 11 more | Find emails |
| nist.gov | #231 | Cloudflare Bot Management, Cloudflare Stream, Cloudflare Turnstile + 8 more | Find emails |
| roku.com | #245 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| who.int | #246 | Azure API Management, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| casalemedia.com | #250 | AOS, Cloudflare, Font Awesome + 6 more | Find emails |
| inmobi.com | #287 | Google Cloud DNS, Google Tag Manager, ID5 + 7 more | Find emails |
| myhuaweicloud.com | #308 | Alibaba Cloud DNS | 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →