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 |
|---|---|---|---|
| iclinic.com.br | #16,619 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| pewtrusts.org | #16,633 | Azure DNS, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| republicworld.com | #16,634 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| logos.com | #16,638 | Amazon Route 53, Azure API Management, Google Fonts + 6 more | Find emails |
| wtfismyip.com | #16,641 | Google Trust Services | Find emails |
| cybera.net | #16,655 | Nginx | Find emails |
| futunn.com | #16,657 | DigiCert, Tencent EdgeOne | Find emails |
| uc.cl | #16,666 | Amazon (ACM), Apache, Google Tag Manager | Find emails |
| gamefound.com | #16,667 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| otago.ac.nz | #16,670 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| christianpost.com | #16,680 | Adobe Fonts (Typekit), Amazon CloudFront, Cloudflare + 15 more | Find emails |
| milanofinanza.it | #16,696 | ASP.NET, Chartbeat, Cloudinary + 8 more | Find emails |
| huobi.com | #16,697 | Amazon Route 53 | Find emails |
| mponline.gov.in | #16,714 | ASP.NET, Bootstrap, DigiCert + 5 more | Find emails |
| cira.ca | #16,728 | BambooHR, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| treccani.it | #16,747 | Amazon (ACM), Amazon CloudFront, Next.js + 4 more | Find emails |
| ucc.ie | #16,751 | Apache, Bootstrap, Cookiebot + 7 more | Find emails |
| fec.gov | #16,755 | Amazon CloudFront, Atlassian Statuspage, Django + 4 more | Find emails |
| virgin.com | #16,758 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 6 more | Find emails |
| texasmonthly.com | #16,776 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 1 more | Find emails |
| ncaa.org | #16,781 | AppNexus, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| perimeter81.com | #16,788 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| wartsila.com | #16,790 | Azure API Management, BrightEdge, Cloudflare edge/CDN + 5 more | Find emails |
| healthstream.com | #16,793 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 8 more | Find emails |
| jn.pt | #16,830 | Amazon (ACM), Amazon CloudFront, Cloudflare | 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 →