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 |
|---|---|---|---|
| keka.com | #38,019 | Amazon Route 53 | Find emails |
| classaction.org | #38,030 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt | Find emails |
| desire2learn.com | #38,036 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| #38,037 |
| Adobe Experience Cloud (Launch), Adobe Target, Akamai Bot Manager + 9 more |
| Find emails |
| netdoktor.de | #38,040 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| acronis.work | #38,052 | Amazon Route 53 | Find emails |
| troyhunt.com | #38,071 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 16 more | Find emails |
| aisnet.org | #38,078 | ASP.NET, Amazon CloudFront, Amazon S3 + 26 more | Find emails |
| humanservices.gov.au | #38,083 | Akamai Bot Manager, Akamai edge/CDN, DigiCert + 4 more | Find emails |
| truckerpath.com | #38,086 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| newsweek.pl | #38,111 | Amazon CloudFront, DigiCert, DoubleClick (Google Ads) + 8 more | Find emails |
| microgaming.io | #38,121 | Amazon (ACM), Amazon CloudFront, Google Fonts + 4 more | Find emails |
| swan.ac.uk | #38,125 | Adobe Fonts (Typekit), Apache, Bootstrap + 8 more | Find emails |
| adr.it | #38,126 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | Find emails |
| netherrealm.com | #38,130 | Amazon (ACM), Amazon Route 53, Amazon Web Services | Find emails |
| fldoe.org | #38,142 | Akamai edge/CDN, DigiCert | Find emails |
| funcionpublica.gov.co | #38,158 | Azure DNS | Find emails |
| ulster.ac.uk | #38,159 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| manulife.ca | #38,182 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 5 more | Find emails |
| athle.fr | #38,184 | AOS, ASP.NET, AppNexus + 11 more | Find emails |
| spideroak.com | #38,187 | Amazon Route 53, Elementor, Google Tag Manager + 5 more | Find emails |
| kokusen.go.jp | #38,188 | Apache, Azure DNS, Google Hosted Libraries + 2 more | Find emails |
| douglas.nl | #38,192 | Akamai Bot Manager, CSC (Digital Brand Services), DigiCert | Find emails |
| hillsdale.edu | #38,193 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| nothingbundtcakes.com | #38,196 | Fastly, Let's Encrypt, Monetate + 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-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →