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 |
|---|---|---|---|
| doshisha.ac.jp | #39,264 | Amazon CloudFront, Amazon Route 53, Fancybox + 6 more | Find emails |
| skapiec.pl | #39,265 | Amazon CloudFront, Google Tag Manager, Let's Encrypt + 1 more | Find emails |
| jobs.ch | #39,267 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| axelspringer.de | #39,270 | Akamai Edge DNS, Amazon (ACM), Amazon CloudFront + 3 more | Find emails |
| courts.go.jp | #39,277 | Azure Front Door, Bootstrap, Font Awesome + 8 more | Find emails |
| pluska.sk | #39,281 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 2 more | Find emails |
| itesm.mx | #39,283 | Apache, DigiCert | Find emails |
| informador.mx | #39,294 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| ingenieur.de | #39,297 | Let's Encrypt, Nginx, PHP + 6 more | Find emails |
| i3d.net | #39,298 | Cloudflare Bot Management, Cloudflare edge/CDN, Cookiebot + 10 more | Find emails |
| uinjkt.ac.id | #39,301 | Bootstrap, Font Awesome, Modernizr + 6 more | Find emails |
| cuyahogacounty.gov | #39,305 | AOS, ASP.NET, Bootstrap + 15 more | Find emails |
| shakeshack.com | #39,312 | Branch, Cloudflare, Cloudflare Bot Management + 7 more | Find emails |
| wg-gesucht.de | #39,324 | Apache, Bootstrap, Chart.js + 8 more | Find emails |
| victorinox.com | #39,333 | Let's Encrypt, Netlify, Next.js + 2 more | Find emails |
| opstatics.com | #39,336 | Amazon Route 53, DigiCert, Nginx | Find emails |
| yaleclimateconnections.org | #39,340 | Google Tag Manager, Google Trust Services, Nginx + 3 more | Find emails |
| cosmote.gr | #39,345 | Imperva | Find emails |
| keele.ac.uk | #39,346 | Amazon (ACM), Amazon Route 53, Apache + 4 more | Find emails |
| jpo.go.jp | #39,354 | Amazon (ACM), Amazon CloudFront, Amazon S3 + 4 more | Find emails |
| sportinglife.ca | #39,357 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| lehighvalleylive.com | #39,359 | DataDome, Let's Encrypt, NS1 | Find emails |
| canarias7.es | #39,364 | Google Cloud DNS, New Relic, Webpack | Find emails |
| rockwool.com | #39,365 | Azure API Management, Azure Front Door, Cloudflare edge/CDN + 4 more | Find emails |
| veradigm.com | #39,368 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 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 →