Websites using Microsoft 365
We detect Microsoft 365 on 11,793 websites, 0.09% of the 12.7 million live sites we have crawled — and 1.4% of the 12,113 most popular, from who.int to nasa.gov.
Free with a verified account · up to 3 samples a month · CSV or JSON · ranks, contact pages, e-mails
Top sites using Microsoft 365
Full list (11,793 sites) →Filter by rank and language. Contact pages and e-mails included.
Download a free sample →Where it is used
From the domain extension, not from where the site is hosted.
Country domains
- United Kingdom.uk793
- Australia.au598
- Japan.jp443
- Canada.ca227
- Germany.de211
- New Zealand.nz139
Languages
- English
- French
- German
- Spanish
- Japanese
Microsoft 365 at a glance
We detect Microsoft 365 on 11,793 websites, 0.09% of the 12.7 million live sites we have crawled. It ranks 2nd out of 12 in the Webmail category. It is more common among the most popular sites: 1.4% of the top 12,113 use it (172), and 0.15% of the top 1.3 million (2,050). Sites using it often also use Cloudflare, Shopify and jQuery. Its main alternatives in Webmail are Google Workspace, Outlook Web App and RoundCube. The sites using it are most often in English, followed by French and German.
Most popular sites: domains in the top 10,000 or the top 1 million of at least one public ranking (Tranco, Majestic, Open PageRank).
Tracked since October 2026.
11,793 live sites today
Counts follow the sites we crawl. Our crawl grew sharply in October 2026, so part of that month's rise reflects coverage, not adoption.
Same data in your code or your AI assistant: REST API and MCP server →