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 |
|---|---|---|---|
| repco.com.au | #49,593 | CSC (Digital Brand Services), Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| lionbrand.com | #49,596 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| burlingtonfreepress.com | #49,598 | Amazon Advertising, Confiant, Criteo + 7 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| heartinternet.uk | #49,613 | Awin, Bootstrap, Cloudflare + 17 more | Find emails |
| rheumatology.org | #49,618 | Azure DNS, Bootstrap, Contentstack + 15 more | Find emails |
| ibood.com | #49,644 | Akamai Bot Manager, Google Cloud DNS, Let's Encrypt + 2 more | Find emails |
| therapistaid.com | #49,648 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| wellstar.org | #49,649 | ASP.NET, Amazon CloudFront, Azure API Management + 16 more | Find emails |
| tui.pl | #49,654 | Amazon CloudFront, Azure DNS, Cookiebot + 9 more | Find emails |
| wepink.com.br | #49,657 | Amazon CloudFront, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| nimbusweb.me | #49,663 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| chroniclejournal.com | #49,669 | DoubleClick (Google Ads), Font Awesome, Google AdSense + 11 more | Find emails |
| techsuccess.com.au | #49,673 | All in One SEO, Font Awesome, Google Analytics + 7 more | Find emails |
| senado.leg.br | #49,707 | Font Awesome, Google Analytics, Google Tag Manager + 5 more | Find emails |
| ipo.gov.uk | #49,715 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| footwearnews.com | #49,716 | Adobe Fonts (Typekit), Amazon Route 53, Let's Encrypt + 5 more | Find emails |
| christiantoday.com | #49,717 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| csa-iot.org | #49,730 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| swizzonic.ch | #49,734 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 15 more | Find emails |
| biomerieux.com | #49,735 | Adobe Advertising Cloud, Adobe Analytics, Adobe Audience Manager + 27 more | Find emails |
| uema.br | #49,745 | Apache, Bootstrap, Font Awesome + 4 more | Find emails |
| llu.edu | #49,749 | AOS, AddToAny, Adobe Fonts (Typekit) + 12 more | Find emails |
| puydufou.com | #49,750 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | Find emails |
| betclic.fr | #49,754 | Amazon CloudFront, Amazon Route 53 | Find emails |
| playwsop.com | #49,764 | AOS, Amazon Route 53, AppsFlyer + 8 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 →