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 |
|---|---|---|---|
| arcadis.com | #44,690 | Azure API Management, Azure Front Door, Cloudflare edge/CDN + 7 more | Find emails |
| registerguard.com | #44,692 | Amazon Advertising, Confiant, Criteo + 7 more | Find emails |
| harvardlawreview.org | #44,698 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 6 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| udn.vn | #44,719 | ASP.NET, DotNetNuke, Font Awesome + 8 more | Find emails |
| calabriocloud.com | #44,721 | Amazon (ACM), Amazon Route 53, Apache + 1 more | Find emails |
| lifeextension.com | #44,722 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 9 more | Find emails |
| tc.df.gov.br | #44,723 | Chart.js, Font Awesome, Google Fonts + 9 more | Find emails |
| tudorwatch.com | #44,726 | Akamai edge/CDN, Akamai mPulse, DigiCert + 4 more | Find emails |
| grays.com | #44,728 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| sgcarmart.com | #44,734 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| dtci.technology | #44,739 | Amazon Route 53, Nginx, Okta + 1 more | Find emails |
| nctm.org | #44,741 | ASP.NET, Bootstrap, Cloudflare + 10 more | Find emails |
| rijnmond.nl | #44,749 | Amazon (ACM), Amazon CloudFront, Nuxt.js + 1 more | Find emails |
| reseau-canope.fr | #44,761 | Apache, PHP | Find emails |
| clearcareonline.com | #44,762 | Amazon Route 53, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| ebony.com | #44,763 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| isimtescil.net | #44,770 | ASP.NET, Apache, Bootstrap + 9 more | Find emails |
| oikoumene.org | #44,773 | AddToAny, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| allovoisins.com | #44,774 | Didomi, DigiCert, DoubleClick (Google Ads) + 4 more | Find emails |
| rpco.com.au | #44,805 | Adobe Fonts (Typekit), Cloudflare, Font Awesome + 8 more | Find emails |
| umantis.com | #44,823 | Apache, CCM19, Google Tag Manager + 2 more | Find emails |
| invoicesimple.com | #44,824 | Amazon Route 53, AppsFlyer, Cloudflare edge/CDN + 10 more | Find emails |
| petz.com.br | #44,825 | Akamai edge/CDN, Akamai mPulse, Amazon Route 53 + 8 more | Find emails |
| simpleviewinc.com | #44,826 | Adobe Fonts (Typekit), Akamai edge/CDN, AudioEye + 11 more | Find emails |
| chuden.co.jp | #44,832 | Akamai Edge DNS, Azure Front Door, DigiCert + 2 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 →