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 |
|---|---|---|---|
| icao.int | #14,701 | ASP.NET, Amazon CloudFront, Azure DNS + 10 more | Find emails |
| ralphlauren.com | #14,703 | Cloudflare, Fastly, PerimeterX (HUMAN) + 2 more | Find emails |
| waz.de | #14,719 | Amazon (ACM), Amazon API Gateway, Amazon CloudFront + 6 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| hellowork.com |
| #14,737 |
| DoubleClick (Google Ads), Google Publisher Tag, Google Tag Manager + 1 more |
| Find emails |
| sfsu.edu | #14,745 | Bootstrap, Drupal, Fastly + 11 more | Find emails |
| tele2.se | #14,747 | Astro, Google Fonts, OneTrust + 1 more | Find emails |
| jtb.co.jp | #14,758 | ASP.NET, Amazon CloudFront, Axios + 3 more | Find emails |
| resideo.com | #14,761 | AWS Lambda, Adobe Fonts, Adobe Fonts (Typekit) + 18 more | Find emails |
| irena.org | #14,763 | GoDaddy | Find emails |
| pccomponentes.com | #14,776 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| elpais.com.uy | #14,782 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| extreme-ip-lookup.com | #14,787 | Let's Encrypt, Nginx | Find emails |
| doi.gov | #14,788 | Akamai Bot Manager, Cloudflare, ConsentMo + 9 more | Find emails |
| wordhippo.com | #14,793 | Apache, GoDaddy | Find emails |
| tomorrowland.com | #14,798 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 3 more | Find emails |
| nordea.com | #14,807 | CSC (Digital Brand Services), Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| ttu.edu | #14,808 | ASP.NET, AddToAny, Azure DNS + 9 more | Find emails |
| pcisecuritystandards.org | #14,827 | Amazon Route 53, Civic Cookie Control, Google Tag Manager + 6 more | Find emails |
| belfasttelegraph.co.uk | #14,831 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| gouv.qc.ca | #14,836 | — | Find emails |
| bea.gov | #14,846 | ASP.NET, Azure Front Door, Bootstrap + 14 more | Find emails |
| maya.ph | #14,869 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 12 more | Find emails |
| begambleaware.org | #14,872 | ASP.NET, Adobe Fonts (Typekit), Cloudflare Bot Management + 6 more | Find emails |
| kyushu-u.ac.jp | #14,880 | Google Analytics, Google Fonts, Google Tag Manager + 4 more | Find emails |
| strath.ac.uk | #14,887 | Apache, Azure Front Door, Bootstrap + 12 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →