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 |
|---|---|---|---|
| winbet.bg | #21,441 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| hisense.com | #21,445 | Fastly, Let's Encrypt, PriceSpider + 1 more | Find emails |
| unige.it | #21,449 | Adobe Fonts, Adobe Fonts (Typekit), Apache + 4 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| theaa.com |
| #21,454 |
| Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more |
| Find emails |
| relativity.one | #21,463 | Azure DNS | Find emails |
| pleinevie.fr | #21,497 | Cloudflare, Cloudflare edge/CDN, Didomi + 6 more | Find emails |
| pravda.sk | #21,506 | Chartbeat, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| fnal.gov | #21,519 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| sports.fr | #21,520 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 1 more | Find emails |
| funko.com | #21,527 | AB Tasty, Cloudflare, Cloudflare Bot Management + 8 more | Find emails |
| gonitro.com | #21,530 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| kingcounty.gov | #21,532 | ASP.NET, Amazon Route 53, Azure Front Door + 14 more | Find emails |
| unido.org | #21,537 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| kabu.co.jp | #21,543 | Akamai Edge DNS | Find emails |
| architizer.com | #21,548 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 19 more | Find emails |
| mailgun.com | #21,551 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| ackermans.co.za | #21,558 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 1 more | Find emails |
| adxcel-ec2.com | #21,559 | Amazon Route 53, Apache, Google Hosted Libraries + 2 more | Find emails |
| healthcentral.com | #21,561 | Amazon Route 53, DataDome, Let's Encrypt + 1 more | Find emails |
| voa.gov | #21,589 | Akamai Edge DNS, Google Tag Manager, Let's Encrypt + 1 more | Find emails |
| visitscotland.com | #21,597 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| whoi.edu | #21,605 | 33Across, AdRoll, Bootstrap + 20 more | Find emails |
| rabo.cloud | #21,614 | Akamai Edge DNS | Find emails |
| espacejeux.com | #21,615 | Imperva | Find emails |
| nfieldmr.com | #21,616 | Azure DNS, Cloudflare edge/CDN, Google Trust Services + 9 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 →