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 |
|---|---|---|---|
| umu.se | #10,388 | Citrix NetScaler, ConsentMo, Let's Encrypt | Find emails |
| insurads.com | #10,404 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 6 more | Find emails |
| casino.org | #10,408 | Adobe Experience Cloud (Launch), Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| uplynk.com |
| #10,411 |
| AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 9 more |
| Find emails |
| utp.edu.pe | #10,422 | Drupal, Google Fonts, Nginx | Find emails |
| foxitsoftware.com | #10,439 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| physiology.org | #10,441 | ASP.NET, Adobe Fonts (Typekit), Amazon (ACM) + 12 more | Find emails |
| cancerresearchuk.org | #10,451 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| marketo.net | #10,452 | — | Find emails |
| american.edu | #10,459 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| subway.com | #10,462 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 8 more | Find emails |
| misli.az | #10,466 | Amazon Route 53, Google Analytics, Google Tag Manager + 5 more | Find emails |
| axismaxlife.com | #10,485 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| clickmeeting.com | #10,492 | Braintree, Fancybox, Fastly + 17 more | Find emails |
| classera.com | #10,493 | AOS, Bootstrap, Cloudflare + 22 more | Find emails |
| cognitoforms.com | #10,501 | Astro, Azure API Management, Azure DNS + 2 more | Find emails |
| grabcad.com | #10,503 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | Find emails |
| betway.co.zm | #10,515 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| origin.com | #10,523 | Akamai Edge DNS, DigiCert, Google Optimize + 5 more | Find emails |
| magento.com | #10,531 | Akamai Bot Manager, Akamai edge/CDN, DigiCert + 1 more | Find emails |
| nurd.com | #10,534 | Bootstrap, Font Awesome, Google Analytics + 5 more | Find emails |
| avios.com | #10,544 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 8 more | Find emails |
| finya.de | #10,545 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 6 more | Find emails |
| gdatasecurity.de | #10,568 | Google Tag Manager, Matomo, Next.js + 3 more | Find emails |
| uptodate.com | #10,575 | DigiCert, OneTrust, reCAPTCHA + 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 →