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 |
|---|---|---|---|
| adnami.io | #11,468 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| catonetworks.com | #11,477 | Amazon Route 53, Imperva | Find emails |
| latercera.com | #11,482 | Akamai mPulse, Amazon Route 53, Google Analytics + 5 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| bis.org |
| #11,483 |
| Let's Encrypt, Modernizr, NS1 + 1 more |
| Find emails |
| gtmetrix.com | #11,490 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| sinch.com | #11,493 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 3 more | Find emails |
| gamcare.org.uk | #11,494 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| polimi.it | #11,500 | Bootstrap, ConsentMo, Google Analytics + 7 more | Find emails |
| lojasrenner.com.br | #11,509 | AppsFlyer, Criteo, Google Analytics + 9 more | Find emails |
| uwa.edu.au | #11,515 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| petfinder.com | #11,516 | Akamai Bot Manager, Akamai edge/CDN, Amazon CloudFront + 9 more | Find emails |
| exeter.ac.uk | #11,517 | Amazon (ACM), Amazon CloudFront, Google Tag Manager + 2 more | Find emails |
| publico.es | #11,518 | Amazon (ACM), Amazon CloudFront | Find emails |
| awin.com | #11,520 | Akamai mPulse, Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| myfonts.com | #11,525 | Adobe Experience Cloud (Launch), Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| oakley.com | #11,529 | Akamai Bot Manager, Akamai Edge DNS, DigiCert | Find emails |
| unimi.it | #11,546 | Cloudflare Bot Management, Cloudflare edge/CDN, ConsentMo + 3 more | Find emails |
| abc7.com | #11,555 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| louisville.edu | #11,564 | ConsentMo, Drupal, Google Tag Manager + 3 more | Find emails |
| plaync.com | #11,574 | Amazon Route 53, Envoy, Sectigo | Find emails |
| gamblingtherapy.org | #11,575 | AOS, Adobe Fonts (Typekit), Cloudflare + 11 more | Find emails |
| iflscience.com | #11,586 | AWS WAF, Amazon (ACM), Amazon CloudFront + 1 more | Find emails |
| vietjetair.com | #11,589 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| underarmour.com | #11,592 | Constructor.io, Fastly, Next.js + 7 more | Find emails |
| qmul.ac.uk | #11,594 | Amazon (ACM), Amazon CloudFront, Dynatrace + 3 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 →