108,758 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 |
|---|---|---|---|
| aaaauto.cz | #56,254 | Sectigo | Find emails |
| r.pl | #56,257 | DigiCert, Google Fonts, Nginx + 2 more | Find emails |
| bristol.gov.uk | #56,258 | ASP.NET, Azure DNS, Cloudflare Web Analytics + 7 more | Find emails |
| staralliance.com |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| #56,262 |
| Amazon (ACM), Amazon Web Services |
| Find emails |
| imshealth.com | #56,274 | Coveo, Google Fonts, Google Tag Manager + 3 more | Find emails |
| skyscanner.pl | #56,279 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| tokyo-park.or.jp | #56,287 | Apache, Google Tag Manager, MarsFlag + 4 more | Find emails |
| reussir.fr | #56,290 | ASP.NET, Azure API Management, Drupal + 5 more | Find emails |
| thansen.dk | #56,296 | Bootstrap, Cookie Information, Font Awesome + 10 more | Find emails |
| easybook.com | #56,300 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| edc.dk | #56,301 | ASP.NET, Azure API Management, Azure DNS + 5 more | Find emails |
| screwfix.ie | #56,302 | Amazon CloudFront, Amazon S3, Awin + 3 more | Find emails |
| uso.org | #56,303 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| eurobasket.com | #56,311 | ASP.NET, Bootstrap, Cloudflare + 10 more | Find emails |
| cnj.jus.br | #56,316 | Amazon CloudFront, Bootstrap, Font Awesome + 10 more | Find emails |
| landregistry.gov.uk | #56,325 | Amazon Route 53 | Find emails |
| maxient.com | #56,329 | Amazon Route 53, Bootstrap, Font Awesome + 5 more | Find emails |
| marketperf.com | #56,330 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| epodex.com | #56,334 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| mycardplace.com | #56,337 | Amazon Route 53, Sectigo | Find emails |
| nkd.com | #56,345 | Fastly, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| adidas.com.tr | #56,349 | CSC (Digital Brand Services), DigiCert, Tealium | Find emails |
| gendigital.com | #56,365 | Adobe Experience Cloud (Launch), Ashby, Azure API Management + 11 more | Find emails |
| go2si.com | #56,367 | Adobe Fonts, Adobe Fonts (Typekit), Amazon Route 53 + 6 more | Find emails |
| figc.it | #56,374 | Amazon CloudFront, Cookiebot, DigiCert + 4 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →