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 |
|---|---|---|---|
| cmich.edu | #22,132 | ASP.NET, Adobe Fonts, Apache + 16 more | Find emails |
| fia.com | #22,140 | Adobe Fonts (Typekit), Amazon CloudFront, CookieYes + 8 more | Find emails |
| cielo.com.br | #22,143 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 16 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| swisssign.net |
| #22,154 |
| Akamai Edge DNS, Apache, reCAPTCHA + 1 more |
| Find emails |
| ibo.org | #22,160 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| amsterdam.nl | #22,172 | Akamai Edge DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| manulife.com | #22,197 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai edge/CDN + 5 more | Find emails |
| sklavenitis.gr | #22,198 | Akamai edge/CDN, Akamai mPulse, BugHerd + 5 more | Find emails |
| rescue.org | #22,202 | Adobe Fonts (Typekit), Azure DNS, Bluesky + 12 more | Find emails |
| vu.lt | #22,213 | Apache, Google Tag Manager, Next.js + 2 more | Find emails |
| harrypotter.com | #22,231 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| ratp.fr | #22,235 | Akamai Edge DNS, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| kcra.com | #22,237 | Amazon Advertising, Amazon Route 53, Criteo + 13 more | Find emails |
| bpjs-kesehatan.go.id | #22,243 | DigiCert, Google Analytics, Google Tag Manager + 4 more | Find emails |
| jisc.ac.uk | #22,248 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| lidl.ro | #22,259 | ASP.NET, Adyen, Akamai Bot Manager + 23 more | Find emails |
| africanews.com | #22,278 | Amazon Route 53, Apache, Didomi + 4 more | Find emails |
| emedny.org | #22,281 | ASP.NET, Amazon Route 53, Font Awesome + 8 more | Find emails |
| puuilo.fi | #22,286 | Fastly, Let's Encrypt, New Relic + 1 more | Find emails |
| cacaushow.com.br | #22,289 | Bootstrap, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| tse.go.cr | #22,290 | AOS, Azure DNS, Bootstrap + 7 more | Find emails |
| jacksonville.com | #22,293 | Amazon Advertising, Confiant, DoubleClick (Google Ads) + 5 more | Find emails |
| snapcomms.com | #22,310 | 6sense, Bootstrap, Cloudflare Bot Management + 11 more | Find emails |
| kobe-u.ac.jp | #22,318 | Apache, Bootstrap, Drupal + 5 more | Find emails |
| intaspharma.com | #22,320 | Google Analytics, Google Fonts, Google Tag Manager + 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 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 →