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 |
|---|---|---|---|
| 1rx.io | #675 | NS1 | Find emails |
| spiegel.de | #682 | DigiCert, Alpine.js | Find emails |
| watchlist-internet.at | #702 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| criteo.net |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| #719 |
| — |
| Find emails |
| marriott.com | #735 | Akamai Edge DNS, Akamai edge/CDN, Sectigo | Find emails |
| iso.org | #738 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| adform.net | #742 | Akamai Edge DNS, DigiCert, Nginx | Find emails |
| appcenter.ms | #755 | Azure DNS | Find emails |
| mlb.com | #761 | Adobe Analytics, Adobe Experience Cloud (Launch), Amazon Route 53 + 8 more | Find emails |
| otto.de | #775 | Akamai Edge DNS, DigiCert, OneTrust + 1 more | Find emails |
| globalsign.com | #781 | Bootstrap, Cloudflare edge/CDN, Concrete CMS + 8 more | Find emails |
| apnews.com | #794 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| rakuten.com | #795 | Akamai Edge DNS, DigiCert, Meta Pixel + 4 more | Find emails |
| welt.de | #797 | Akamai Edge DNS, Let's Encrypt, Tealium | Find emails |
| bild.de | #803 | Akamai Edge DNS, DigiCert, Tealium | Find emails |
| disneyplus.com | #805 | NS1 | Find emails |
| wpguardian.com | #807 | Amplitude, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| lenovo.com | #809 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 6 more | Find emails |
| princeton.edu | #815 | Adobe Fonts (Typekit), Akamai Edge DNS, Cloudflare edge/CDN + 3 more | Find emails |
| disqus.com | #818 | Amazon Route 53, Nginx, Osano + 1 more | Find emails |
| lefigaro.fr | #822 | Akamai Edge DNS, DigiCert, Google AdSense + 1 more | Find emails |
| vivo.com.cn | #828 | DigiCert, Google Analytics, Google Tag Manager + 4 more | Find emails |
| focus.de | #853 | Akamai Edge DNS, Auth0, Let's Encrypt + 1 more | Find emails |
| usda.gov | #856 | Akamai Bot Manager, Akamai edge/CDN, ConsentMo + 4 more | Find emails |
| frontiersin.org | #858 | Azure DNS, New Relic, Nuxt.js + 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 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 →