104,545 of the 965,200 top sites in our Tranco top-1M census run Microsoft 365 (10.8%). 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 |
|---|---|---|---|
| reson8.com | #7,128 | — | Find emails |
| maine.gov | #7,131 | Amazon (ACM), Amazon CloudFront, Google Analytics + 5 more | Find emails |
| nova.cz | #7,136 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| rferl.org |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| #7,137 |
| Cloudflare, Google Tag Manager, Let's Encrypt + 3 more |
| Find emails |
| ivanti.com | #7,145 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 5 more | Find emails |
| nami.org | #7,148 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| adevarul.ro | #7,151 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| motor1.com | #7,166 | Amazon (ACM), Amazon Route 53, Google Fonts + 2 more | Find emails |
| nishinippon.co.jp | #7,167 | Amazon CloudFront, Amazon Route 53, DigiCert + 6 more | Find emails |
| otempo.com.br | #7,174 | Akamai Edge DNS, Algolia, Amazon Advertising + 9 more | Find emails |
| getty.edu | #7,180 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| rtbf.be | #7,192 | Google Analytics, Next.js, React | Find emails |
| poliziadistato.it | #7,194 | Akamai Edge DNS, Bootstrap, Font Awesome + 6 more | Find emails |
| stubhub.com | #7,197 | Affirm, Amazon (ACM), Amazon CloudFront + 7 more | Find emails |
| unece.org | #7,199 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| e-planning.net | #7,204 | Amazon Route 53, Font Awesome, Google Fonts + 5 more | Find emails |
| idealista.pt | #7,205 | Amazon Route 53, DataDome, Let's Encrypt | Find emails |
| national-lottery.co.uk | #7,209 | Amazon (ACM), Amazon CloudFront, Google Tag Manager + 3 more | Find emails |
| rpp.pe | #7,220 | Amazon Route 53, Fastly, Google Publisher Tag + 2 more | Find emails |
| kiabi.com | #7,224 | DataDome, Fastly, Google Cloud DNS + 1 more | Find emails |
| gala.de | #7,234 | Amazon Route 53, Let's Encrypt | Find emails |
| mbl.is | #7,236 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 3 more | Find emails |
| unirioja.es | #7,252 | Font Awesome, Google Fonts, Meta Pixel + 4 more | Find emails |
| 15min.lt | #7,255 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 5 more | Find emails |
| wb.gov.in | #7,268 | ASP.NET, Bootstrap, DigiCert + 4 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →