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 |
|---|---|---|---|
| cnr.it | #3,792 | Drupal, Font Awesome, Matomo + 4 more | Find emails |
| uiowa.edu | #3,797 | ConsentMo, Drupal, Font Awesome + 6 more | Find emails |
| gap.com | #3,800 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 6 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| piano.io |
| #3,803 |
| Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more |
| Find emails |
| comodo.com | #3,804 | Font Awesome, Google Fonts, Google Tag Manager + 9 more | Find emails |
| popularmechanics.com | #3,811 | Amazon Route 53, Next.js, OneTrust + 2 more | Find emails |
| zaloapp.com | #3,822 | DigiCert, Google Analytics, Google Tag Manager + 2 more | Find emails |
| familysearch.org | #3,832 | Amazon CloudFront, Amazon Route 53, DigiCert + 3 more | Find emails |
| geforce.com | #3,833 | Adobe Experience Cloud (Launch), Apache, DigiCert + 4 more | Find emails |
| bell-labs.com | #3,836 | Akamai edge/CDN, DigiCert, Drupal + 8 more | Find emails |
| volvocars.com | #3,841 | Akamai Bot Manager, Akamai edge/CDN, CSC (Digital Brand Services) + 8 more | Find emails |
| themegrill.com | #3,845 | CleanTalk, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| eurekalert.org | #3,853 | Amazon (ACM), Apache, New Relic + 2 more | Find emails |
| mojang.com | #3,868 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai edge/CDN + 4 more | Find emails |
| oregonstate.edu | #3,878 | AOS, AddToAny, Cloudflare edge/CDN + 12 more | Find emails |
| seattletimes.com | #3,883 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| unfccc.int | #3,885 | Azure DNS, Imperva | Find emails |
| unhcr.org | #3,893 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| razer.com | #3,897 | Algolia, Cloudflare edge/CDN, Google Fonts + 1 more | Find emails |
| nos.nl | #3,901 | Amazon CloudFront, Amazon Route 53, Next.js + 6 more | Find emails |
| casasbahia.com.br | #3,905 | Akamai Edge DNS, DigiCert, bit.ly | Find emails |
| connectad.io | #3,920 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| easyjet.com | #3,928 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 1 more | Find emails |
| zenodo.org | #3,930 | Bootstrap, Cloudflare, Fastly + 9 more | Find emails |
| carfax.com | #3,941 | Amazon (ACM), Amazon CloudFront, Amazon S3 + 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 →