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 |
|---|---|---|---|
| kiehls.com | #46,743 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| pagesjaunes.ca | #46,749 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| cost.eu | #46,750 | AOS, Adobe Fonts (Typekit), Cloudflare + 8 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| deltadental.com | #46,754 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 11 more | Find emails |
| bohemia.net | #46,756 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare edge/CDN + 3 more | Find emails |
| artsai.com | #46,763 | AddToAny, Amazon Route 53, Apache + 16 more | Find emails |
| ethoswatches.com | #46,770 | Adobe Fonts (Typekit), Bootstrap, Cloudflare + 8 more | Find emails |
| ug.edu.pl | #46,789 | Apache, Drupal, Font Awesome + 5 more | Find emails |
| ageofempires.com | #46,795 | Adobe Fonts (Typekit), Azure DNS, Azure Front Door + 5 more | Find emails |
| als.org | #46,796 | AOS, Adobe Fonts (Typekit), Cloudflare + 17 more | Find emails |
| andritz.com | #46,800 | DigiCert, Nginx, YouTube | Find emails |
| plopsa.com | #46,805 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 2 more | Find emails |
| newscentermaine.com | #46,806 | ASP.NET, Akamai Bot Manager, Akamai edge/CDN + 2 more | Find emails |
| americatv.com.pe | #46,830 | Amazon Route 53, Cloudflare edge/CDN, DoubleClick (Google Ads) + 6 more | Find emails |
| aifriends.cc | #46,886 | Tencent EdgeOne | Find emails |
| tradewindsnews.com | #46,887 | Amazon (ACM), Amazon CloudFront, Google Funding Choices + 3 more | Find emails |
| fnac.be | #46,906 | Akamai Edge DNS, DataDome, Sectigo | Find emails |
| unoosa.org | #46,910 | Apache, Bootstrap, Font Awesome + 7 more | Find emails |
| vito.be | #46,911 | Drupal, Google Tag Manager, jQuery | Find emails |
| transitchicago.com | #46,919 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN | Find emails |
| notino.pl | #46,921 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| argusleader.com | #46,939 | Amazon Advertising, Confiant, Criteo + 7 more | Find emails |
| topendsports.com | #46,943 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| vskit.tv | #46,961 | Amazon (ACM), Amazon CloudFront, Envoy + 3 more | Find emails |
| exeloncorp.com | #46,972 | Azure DNS, DigiCert, Fastly + 11 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →