108,758 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 |
|---|---|---|---|
| gcore.ru | #56,695 | — | Find emails |
| mhra.gov.uk | #56,696 | Fastly, Nginx, Varnish + 1 more | Find emails |
| humboldt-foundation.de | #56,698 | Let's Encrypt, Nginx, PHP + 3 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| belambra.fr |
| #56,711 |
| Didomi, Google Tag Manager, Let's Encrypt + 1 more |
| Find emails |
| csueastbay.edu | #56,716 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| sk.ee | #56,726 | Amazon (ACM), Amazon CloudFront, Apache + 6 more | Find emails |
| casa-systems.com | #56,727 | Adobe Fonts (Typekit), Azure API Management, Azure Front Door + 6 more | Find emails |
| allwyn.gr | #56,729 | Akamai Edge DNS, Akamai edge/CDN, Let's Encrypt | Find emails |
| hhaexchange.com | #56,730 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Tag Manager + 7 more | Find emails |
| ymca.org | #56,739 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| rexel.fr | #56,747 | Azure DNS, Azure Front Door, DataDome + 2 more | Find emails |
| zulacasino.com | #56,748 | Cloudflare, Cloudflare Images, Cloudflare edge/CDN + 8 more | Find emails |
| reannz.co.nz | #56,750 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| fortishealthcare.com | #56,754 | Azure Front Door, Cloudflare, Cloudflare Bot Management + 4 more | Find emails |
| canadagoose.com | #56,759 | Kasada | Find emails |
| fiveguys.com | #56,767 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| one.org | #56,768 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| maynoothuniversity.ie | #56,778 | Bluesky, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| skykick.com | #56,779 | Azure DNS | Find emails |
| fotbollskanalen.se | #56,780 | Adnami, Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| tuifly.be | #56,785 | Akamai Bot Manager, Akamai edge/CDN, Amazon CloudFront + 9 more | Find emails |
| laroche-posay.us | #56,789 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| hersheys.com | #56,799 | Adobe Experience Cloud (Launch), Fastly, Font Awesome + 6 more | Find emails |
| come-on.de | #56,823 | Google Tag Manager, Let's Encrypt, Nginx + 1 more | Find emails |
| pipingrock.com | #56,825 | Amazon Route 53, Cloudflare edge/CDN, Google Hosted Libraries + 6 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →