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 |
|---|---|---|---|
| peer1.net | #49,924 | Builder.io, Cloudflare, Google Tag Manager + 4 more | Find emails |
| stem.org.uk | #49,934 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| toyota.de | #49,965 | Adobe Experience Cloud (Launch), Adobe Experience Manager Edge Delivery (Helix RUM), Apache + 6 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| zerotothree.org | #49,968 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 17 more | Find emails |
| payspace.com | #49,969 | Azure API Management, Azure Front Door, Cloudflare + 6 more | Find emails |
| tagblatt.ch | #49,975 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| raiffeisen.at | #49,989 | Adobe Experience Cloud (Launch), OneTrust, mod_pagespeed | Find emails |
| bipm.org | #49,994 | Apache, Bootstrap, Google Analytics + 7 more | Find emails |
| westminster-abbey.org | #49,997 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 3 more | Find emails |
| coloradoan.com | #50,006 | Amazon Advertising, Confiant, Criteo + 7 more | Find emails |
| telealarm.com | #50,007 | Fastly, Let's Encrypt, Adobe Experience Manager | Find emails |
| sportzcast.net | #50,014 | Auth0, Azure DNS, Cloudflare Bot Management + 8 more | Find emails |
| auto-swiat.pl | #50,019 | Amazon CloudFront, DigiCert, Gemius + 1 more | Find emails |
| iaaf.org | #50,038 | Amazon CloudFront, Amazon Route 53, DigiCert + 5 more | Find emails |
| arbitersports.com | #50,040 | Amazon (ACM), Amazon CloudFront, Azure DNS | Find emails |
| outlookbusiness.com | #50,043 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 16 more | Find emails |
| peak10.com | #50,050 | — | Find emails |
| uniminuto.edu | #50,072 | AOS, ASP.NET, Bootstrap + 15 more | Find emails |
| navegg.com | #50,074 | Akamai Edge DNS, DigiCert | Find emails |
| aueb.gr | #50,079 | Drupal, Font Awesome, Google Hosted Libraries + 4 more | Find emails |
| arket.com | #50,087 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 1 more | Find emails |
| encompass.com | #50,101 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| koat.com | #50,102 | Amazon Advertising, Amazon Route 53, Casale Media + 15 more | Find emails |
| libri.hu | #50,107 | DoubleClick (Google Ads), Gemius, Google Fonts + 3 more | Find emails |
| materialise.com | #50,110 | Amazon Route 53, Google Tag Manager, Imperva + 6 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 →