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 |
|---|---|---|---|
| utp.edu.pe | #10,422 | Drupal, Google Fonts, Nginx | Find emails |
| foxitsoftware.com | #10,439 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 3 more | Find emails |
| physiology.org | #10,441 | ASP.NET, Adobe Fonts (Typekit), Amazon (ACM) + 9 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | 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 edge/CDN | Find emails |
| subway.com | #10,462 | Akamai Bot Manager, Akamai Edge DNS, DigiCert + 3 more | Find emails |
| misli.az | #10,466 | Amazon Route 53, Google Analytics, Google Tag Manager + 5 more | Find emails |
| pch.com | #10,479 | Amazon Route 53, Cloudflare edge/CDN, Google Tag Manager + 2 more | Find emails |
| axismaxlife.com | #10,485 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| clickmeeting.com | #10,492 | Google Fonts, Google Tag Manager, WordPress + 1 more | Find emails |
| classera.com | #10,493 | AOS, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| cognitoforms.com | #10,501 | Astro, Azure DNS, Google Fonts + 1 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 mPulse, Amazon CloudFront + 7 more | Find emails |
| finya.de | #10,545 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt | 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 |
| victronenergy.com | #10,579 | Adobe Fonts (Typekit), Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| drexel.edu | #10,586 | Adobe Fonts (Typekit), Google Tag Manager | Find emails |
| dc.gov | #10,615 | Cloudflare Bot Management, Cloudflare edge/CDN, Drupal + 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 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 →