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 |
|---|---|---|---|
| iste.org | #47,124 | Amazon (ACM), Amazon Route 53, Google Tag Manager + 5 more | Find emails |
| ottawa.ca | #47,136 | Imperva | Find emails |
| paris2024.org | #47,152 | Akamai Bot Manager, Akamai edge/CDN, DigiCert + 3 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| #47,161 |
| Amazon Route 53, Let's Encrypt, Nginx |
| Find emails |
| donordrive.com | #47,162 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 3 more | Find emails |
| smyk.com | #47,183 | Cloudflare, Google Analytics, Google Fonts + 2 more | Find emails |
| oregonlegislature.gov | #47,192 | ASP.NET, Bootstrap, DigiCert + 1 more | Find emails |
| arvato-systems.de | #47,193 | Azure Front Door, CoreMedia CMS, DigiCert | Find emails |
| elheraldo.hn | #47,204 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 4 more | Find emails |
| tmu.edu.tw | #47,206 | ASP.NET, Bootstrap, Font Awesome + 4 more | Find emails |
| usssa.com | #47,218 | ASP.NET, Blockthrough, Bootstrap + 14 more | Find emails |
| prometheanworld.com | #47,219 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| elanco.com | #47,222 | Azure API Management, Azure DNS, Azure Front Door + 13 more | Find emails |
| gulfair.com | #47,223 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| saxo.com | #47,229 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| ersnet.org | #47,230 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| webuycars.co.za | #47,231 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| gdata.de | #47,245 | Consentmanager.net, Next.js, Sectigo + 3 more | Find emails |
| halaxy.com | #47,248 | Amazon (ACM), Amazon Route 53, Amazon Web Services | Find emails |
| salonemilano.it | #47,249 | Amazon CloudFront, Apache, Drupal + 3 more | Find emails |
| nvcc.edu | #47,250 | Adobe Fonts (Typekit), Citrix NetScaler, Google Tag Manager + 2 more | Find emails |
| safekids.org | #47,251 | AddThis, Adobe Fonts (Typekit), Cloudflare + 20 more | Find emails |
| rakuten.com.tw | #47,253 | Akamai Bot Manager, Akamai edge/CDN, DigiCert + 4 more | Find emails |
| wivb.com | #47,259 | CSC (Digital Brand Services), Fastly, Let's Encrypt + 2 more | Find emails |
| hosteur.com | #47,260 | Apache, Bootstrap, Cloudflare + 15 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 →