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 |
|---|---|---|---|
| tinypass.com | #3,599 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| ansa.it | #3,600 | DoubleClick (Google Ads), Fancybox, Google Publisher Tag + 6 more | Find emails |
| ndr.de | #3,615 | Google Cloud DNS, Let's Encrypt, Varnish | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| sba.gov |
| #3,637 |
| Amazon (ACM), Amazon CloudFront, Apache + 3 more |
| Find emails |
| adscale.de | #3,651 | Amazon Route 53, Cloudflare edge/CDN, Cookiebot + 4 more | Find emails |
| iastate.edu | #3,657 | AddToAny, Apache, Azure Front Door + 15 more | Find emails |
| domain.com | #3,664 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| osha.gov | #3,670 | Akamai Edge DNS, Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| metmuseum.org | #3,687 | Let's Encrypt, Next.js, Sanity + 4 more | Find emails |
| morningstar.com | #3,689 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| global-e.com | #3,694 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 21 more | Find emails |
| hbs.edu | #3,698 | Amazon (ACM), Amazon CloudFront, Azure DNS + 3 more | Find emails |
| admaster.cc | #3,707 | Cloudflare Bot Management, Cloudflare edge/CDN, Fastly + 2 more | Find emails |
| news24.com | #3,708 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 9 more | Find emails |
| arcticwolf.net | #3,717 | Amazon CloudFront, Amazon Route 53 | Find emails |
| liberation.fr | #3,744 | DataDome, Let's Encrypt | Find emails |
| unam.mx | #3,748 | Cloudflare Web Analytics, Cloudflare edge/CDN, Drupal + 6 more | Find emails |
| menshealth.com | #3,758 | Amazon Route 53, Next.js, OneTrust + 2 more | Find emails |
| ahagamecenter.com | #3,759 | Amazon Route 53, DigiCert, Google Analytics + 1 more | Find emails |
| legacy.com | #3,761 | Cloudflare edge/CDN, Framer, Google Tag Manager + 2 more | Find emails |
| realestate.com.au | #3,765 | DigiCert, Kasada | Find emails |
| onenote.com | #3,770 | Akamai Edge DNS | Find emails |
| immobilienscout24.de | #3,782 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| sbb.ch | #3,785 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| wargaming.net | #3,791 | DigiCert, Google Fonts, Google Tag Manager + 2 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 →