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 |
|---|---|---|---|
| mobilize.us | #39,501 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| trivago.co.uk | #39,504 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 3 more | Find emails |
| zoovu.com | #39,513 | AddToAny, Bootstrap, Cloudflare + 12 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| hippoobox.com | #39,515 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| dteenergy.com | #39,523 | Backbone.js, Bootstrap, Dynatrace + 13 more | Find emails |
| infrastructure.gov.au | #39,529 | Akamai Bot Manager, Akamai edge/CDN, Azure DNS + 7 more | Find emails |
| apn.net.au | #39,531 | Apache, Font Awesome, Google Ads Conversion + 9 more | Find emails |
| merlot.org | #39,532 | Amazon Route 53, Bootstrap, Font Awesome + 10 more | Find emails |
| croatia.hr | #39,536 | ASP.NET, Azure DNS, Azure Front Door + 5 more | Find emails |
| netnanny.com | #39,546 | Amazon (ACM), Amazon Route 53, Bootstrap + 9 more | Find emails |
| lecker.de | #39,565 | Amazon (ACM), Amazon Route 53, DoubleClick (Google Ads) + 4 more | Find emails |
| tribecafilm.com | #39,574 | Adobe Fonts (Typekit), CrazyEgg, DoubleClick (Google Ads) + 13 more | Find emails |
| cybozu.com | #39,576 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| coolermaster.com | #39,582 | Azure DNS, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| carparts-cat.com | #39,591 | Cloudflare | Find emails |
| nordicsemi.com | #39,594 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 1 more | Find emails |
| floridarevenue.com | #39,604 | ASP.NET, DigiCert, Dynatrace + 6 more | Find emails |
| gensler.com | #39,609 | Apache, Cloudflare, Fastly + 1 more | Find emails |
| quartsoft.com | #39,611 | Amazon Route 53, Cookiebot, Google Analytics + 4 more | Find emails |
| stthomas.edu | #39,617 | Adobe Fonts (Typekit), Amazon CloudFront, Amazon S3 + 8 more | Find emails |
| tedata.net | #39,624 | — | Find emails |
| lincoln.ac.uk | #39,626 | Amazon (ACM), Apache, Bootstrap + 13 more | Find emails |
| risebroadband.com | #39,627 | Amazon (ACM), Amazon Web Services | Find emails |
| bienici.com | #39,634 | Amazon CloudFront, Amazon Route 53, Express + 4 more | Find emails |
| ikmultimedia.com | #39,649 | Adobe Fonts (Typekit), Amazon (ACM), Bootstrap + 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 →