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 |
|---|---|---|---|
| vegansociety.com | #43,258 | Cloudflare, Cloudflare edge/CDN, Drupal + 7 more | Find emails |
| uww.org | #43,260 | Adform, Amazon (ACM), Amazon CloudFront + 11 more | Find emails |
| care.org | #43,262 | BrightEdge, Fastly, Google Tag Manager + 13 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| cmha.ca |
| #43,263 |
| AddToAny, Cloudflare, Cloudflare edge/CDN + 14 more |
| Find emails |
| nn.de | #43,280 | AT Internet, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| independer.nl | #43,283 | ClickTale (Contentsquare), Datadog, Google Analytics + 4 more | Find emails |
| hl7.org | #43,284 | AWS WAF, Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| emoryhealthcare.org | #43,288 | Adobe Fonts, Adobe Fonts (Typekit), Azure Front Door + 5 more | Find emails |
| imagify.io | #43,289 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 6 more | Find emails |
| concur.com | #43,291 | Akamai Edge DNS, Akamai edge/CDN, Akamai mPulse + 10 more | Find emails |
| icsi.edu | #43,292 | Google Analytics, Google Tag Manager, Nginx + 1 more | Find emails |
| xrite.com | #43,294 | ASP.NET, Amazon (ACM), Amazon CloudFront + 21 more | Find emails |
| nada.org | #43,300 | Amazon Route 53, Drupal, Fastly + 11 more | Find emails |
| uqac.ca | #43,307 | AddToAny, Google Ads Conversion, Google Analytics + 4 more | Find emails |
| oxfamamerica.org | #43,315 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 2 more | Find emails |
| internetmatters.org | #43,320 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 1 more | Find emails |
| wbcsd.org | #43,329 | All in One SEO, Cloudflare Turnstile, Cookiebot + 11 more | Find emails |
| securityaffairs.com | #43,341 | AMP for WP, Bootstrap, Cloudflare + 10 more | Find emails |
| altalex.com | #43,343 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| navient.com | #43,347 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), Amazon CloudFront + 13 more | Find emails |
| bouyguestelecom.com | #43,349 | DigiCert, Next.js, React | Find emails |
| ferris.edu | #43,366 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| kens5.com | #43,371 | ASP.NET, Akamai Bot Manager, Akamai edge/CDN + 2 more | Find emails |
| eprints.org | #43,372 | Apache, Let's Encrypt, PHP + 1 more | Find emails |
| orangetheory.com | #43,396 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 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-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →