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 |
|---|---|---|---|
| nasm.org | #28,041 | Adobe Fonts (Typekit), Bootstrap, Cloudflare + 6 more | Find emails |
| bicycling.com | #28,043 | Amazon Route 53, Next.js, OneTrust + 2 more | Find emails |
| rsa.com | #28,049 | Amazon Route 53, Ensighten, Fastly + 8 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| renu.ac.ug |
| #28,056 |
| Google Fonts, Gravatar, Let's Encrypt + 3 more |
| Find emails |
| goop.com | #28,057 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| fergusonhome.com | #28,062 | Akamai Bot Manager, Akamai edge/CDN, DigiCert + 1 more | Find emails |
| ga.de | #28,064 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| subwallet.app | #28,065 | AOS, Bootstrap, Cloudflare + 14 more | Find emails |
| bosch-smarthome.com | #28,071 | Apache, DigiCert, Google Tag Manager + 1 more | Find emails |
| gvsu.edu | #28,072 | Bootstrap, BrightEdge, Cloudflare + 10 more | Find emails |
| bluetooth.com | #28,080 | Cloudflare, Let's Encrypt, Nginx + 3 more | Find emails |
| safenames.com | #28,085 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| acompli.com | #28,092 | Azure DNS | Find emails |
| skcdn.com | #28,097 | Apache, Google Tag Manager, Sectigo + 1 more | Find emails |
| currenttime.tv | #28,106 | Cloudflare, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| arborday.org | #28,109 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| wwf.de | #28,117 | Apache, Bluesky, Friendly Captcha + 3 more | Find emails |
| uninett.no | #28,123 | Let's Encrypt, Next.js, Siteimprove + 3 more | Find emails |
| agid.gov.it | #28,124 | Amazon CloudFront, Let's Encrypt, Matomo + 1 more | Find emails |
| donotcall.gov | #28,126 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| dfg.de | #28,138 | Bluesky, CoreMedia CMS, Gigya (SAP Customer Data Cloud) + 7 more | Find emails |
| solarcity.com | #28,139 | Akamai Edge DNS | Find emails |
| insomniaccia.com | #28,147 | Amazon Route 53 | Find emails |
| struxurewarecloud.com | #28,152 | Apache | Find emails |
| networkforgood.com | #28,161 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 9 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 →