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 |
|---|---|---|---|
| harpersbazaar.com | #4,651 | Amazon Route 53, Next.js, OneTrust + 2 more | Find emails |
| vrt.be | #4,655 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| nationalacademies.org | #4,662 | Akamai Edge DNS, Akamai edge/CDN, Fastly + 2 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| casio.com | #4,666 | Amazon (ACM), Amazon Route 53, Amazon Web Services | Find emails |
| action.com | #4,679 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| iso.ch | #4,689 | Azure DNS | Find emails |
| wizzair.com | #4,697 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| eleconomista.es | #4,718 | Akamai edge/CDN, DigiCert | Find emails |
| dyndns.com | #4,719 | Adobe Analytics, Apache, DigiCert + 2 more | Find emails |
| ntv.co.jp | #4,746 | Amazon CloudFront, Amazon S3, Google Tag Manager + 4 more | Find emails |
| khaleejtimes.com | #4,749 | Amazon Advertising, Blockthrough, Bootstrap + 14 more | Find emails |
| infoseek.co.jp | #4,795 | DigiCert, DoubleClick (Google Ads), Geniee + 4 more | Find emails |
| nla.gov.au | #4,806 | Drupal, Fastly, GTranslate + 5 more | Find emails |
| yieldlab.net | #4,808 | Akamai Edge DNS, Let's Encrypt | Find emails |
| airtel.in | #4,819 | Akamai edge/CDN, Apache, Branch + 2 more | Find emails |
| correoargentino.com.ar | #4,834 | DigiCert, Drupal, Google Ads Conversion + 6 more | Find emails |
| meteoblue.com | #4,860 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 5 more | Find emails |
| dr.dk | #4,867 | Akamai Edge DNS, Cloudflare edge/CDN, Cookiebot + 6 more | Find emails |
| espressif.com | #4,874 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 12 more | Find emails |
| correios.com.br | #4,876 | AddToAny, DigiCert, Dynatrace + 7 more | Find emails |
| ameli.fr | #4,878 | CSC (Digital Brand Services), Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| eagllwin.com | #4,879 | Alibaba Cloud CDN, Alibaba Cloud DNS, Citrix NetScaler + 2 more | Find emails |
| aap.org | #4,889 | ASP.NET, Brightcove, Cloudflare Bot Management + 11 more | Find emails |
| channelnewsasia.com | #4,893 | Adobe Experience Cloud (Launch), Amazon Route 53, Cloudinary + 10 more | Find emails |
| truthsocial.com | #4,895 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 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 →