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 |
|---|---|---|---|
| degruyter.com | #5,649 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| ibosscloud.com | #5,655 | Amazon Route 53, DigiCert | Find emails |
| kurier.at | #5,656 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| bentley.com |
| #5,660 |
| Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 23 more |
| Find emails |
| tudelft.nl | #5,663 | Amazon (ACM), Amazon CloudFront, TYPO3 + 1 more | Find emails |
| aylanetworks.com | #5,667 | Amazon Route 53, Fastly, Let's Encrypt + 1 more | Find emails |
| signupgenius.com | #5,687 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| r-project.org | #5,699 | Bootstrap, Sectigo, jQuery + 1 more | Find emails |
| azcentral.com | #5,700 | Amazon Advertising, Google Publisher Tag, Let's Encrypt + 2 more | Find emails |
| tv2.no | #5,707 | Akamai edge/CDN, Akamai mPulse, Google Publisher Tag + 2 more | Find emails |
| defensx.com | #5,710 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 5 more | Find emails |
| rtl.nl | #5,716 | Akamai Edge DNS, DigiCert, Google Tag Manager | Find emails |
| symfony.com | #5,717 | Cloudflare, Cloudflare edge/CDN, Hotwire Turbo + 1 more | Find emails |
| oregonlive.com | #5,720 | DataDome, Let's Encrypt, NS1 | Find emails |
| dazn.com | #5,726 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | Find emails |
| dnb.com | #5,738 | Akamai Edge DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| falabella.com | #5,743 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| goldprice.org | #5,755 | Amazon CloudFront, Cloudflare, Drupal + 5 more | Find emails |
| yorku.ca | #5,774 | Font Awesome, Google Tag Manager, Hotjar + 5 more | Find emails |
| hs.fi | #5,780 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon CloudFront + 3 more | Find emails |
| onthemarket.com | #5,784 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| telegram.com | #5,798 | Amazon Advertising, Google Publisher Tag, Let's Encrypt + 2 more | Find emails |
| ebird.org | #5,799 | — | Find emails |
| lsu.edu | #5,803 | Adobe Fonts (Typekit), Bootstrap, BrightEdge + 6 more | Find emails |
| covers.com | #5,805 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 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 →