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 |
|---|---|---|---|
| katu.com | #20,777 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| secop.gov.co | #20,778 | Azure DNS | Find emails |
| chapman.edu | #20,784 | ASP.NET, Adobe Fonts (Typekit), Azure Front Door + 7 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| #20,785 |
| ASP.NET, Adobe Fonts (Typekit), BrightEdge + 14 more |
| Find emails |
| lsm.lv | #20,790 | Chartbeat, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| stardock.com | #20,794 | ASP.NET, Adobe Fonts (Typekit), Amplitude + 15 more | Find emails |
| westelm.com | #20,796 | Adobe Audience Manager, Adobe Fonts (Typekit), Akamai Bot Manager + 5 more | Find emails |
| securid.com | #20,808 | Azure DNS, Ensighten, Fastly + 8 more | Find emails |
| centrumrowerowe.pl | #20,811 | Adobe Fonts (Typekit), Amazon Route 53, Google Analytics + 6 more | Find emails |
| unlam.edu.ar | #20,828 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| regione.lombardia.it | #20,835 | Fastly, Google Maps, Matomo + 6 more | Find emails |
| thedetroitbureau.com | #20,837 | Cloudflare Web Analytics, Cloudflare edge/CDN, Let's Encrypt + 1 more | Find emails |
| sears.com | #20,841 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 2 more | Find emails |
| acc.org | #20,859 | DigiCert, New Relic, Webpack | Find emails |
| indiatvnews.com | #20,863 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| app.com | #20,867 | Amazon Advertising, Confiant, Criteo + 7 more | Find emails |
| aha.org | #20,875 | Amazon Route 53, ConsentMo, Drupal + 9 more | Find emails |
| lockly.com | #20,885 | AOS, Bazaarvoice, Cloudflare edge/CDN + 12 more | Find emails |
| surveygizmo.com | #20,893 | Amazon (ACM), Amazon CloudFront, Amazon S3 + 1 more | Find emails |
| fing.io | #20,903 | Amazon Route 53, Google Analytics, Google Hosted Libraries + 10 more | Find emails |
| marketresearchfuture.com | #20,908 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| hangikredi.com | #20,921 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| epsilon.com | #20,925 | Akamai Edge DNS, Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| pace.edu | #20,927 | Drupal, Fastly, Google Tag Manager + 3 more | Find emails |
| playbill.com | #20,934 | Chartbeat, Cloudflare, Cloudflare Bot Management + 10 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 →