108,758 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 |
|---|---|---|---|
| bcra.gob.ar | #18,465 | Amazon CloudFront, Divi, Google Analytics + 6 more | Find emails |
| callsign.com | #18,471 | AOS, Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| pf.gov.br | #18,477 | Cloudflare, Font Awesome, Google Tag Manager + 7 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| dw.de |
| #18,487 |
| — |
| Find emails |
| cirquedusoleil.com | #18,489 | Azure API Management, Azure DNS, Azure Front Door + 4 more | Find emails |
| mylimobiz.com | #18,490 | — | Find emails |
| eleconomista.com.mx | #18,498 | Amazon (ACM), Amazon CloudFront, Axios + 16 more | Find emails |
| easyliveauction.com | #18,519 | Algolia, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| feedingamerica.org | #18,521 | Azure DNS, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| vianet.com.np | #18,527 | Bootstrap, Font Awesome, Google Fonts + 5 more | Find emails |
| cas.sk | #18,529 | Cloudflare, Cloudflare edge/CDN, Disqus + 3 more | Find emails |
| waseda.jp | #18,531 | Adobe Fonts (Typekit), Amazon CloudFront, Cloudflare Bot Management + 8 more | Find emails |
| science-et-vie.com | #18,536 | Cloudflare, Cloudflare edge/CDN, Didomi + 4 more | Find emails |
| iii.org | #18,558 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| tantanapp.com | #18,565 | DigiCert, Nginx, Squarespace + 1 more | Find emails |
| backcountry.com | #18,576 | AWS WAF, Amazon (ACM), Amazon CloudFront + 2 more | Find emails |
| sicnoticias.pt | #18,581 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| sears.com.mx | #18,605 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 12 more | Find emails |
| bgsu.edu | #18,618 | Adobe Experience Manager Edge Delivery (Helix RUM), Apache, Google Tag Manager + 7 more | Find emails |
| aawsat.com | #18,620 | Chartbeat, Cloudflare, Cloudflare Bot Management + 5 more | Find emails |
| chrysler.com | #18,623 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 6 more | Find emails |
| grazia.fr | #18,630 | Cloudflare, Cloudflare edge/CDN, Didomi + 8 more | Find emails |
| uhaul.com | #18,635 | AB Tasty, ASP.NET, CSC (Digital Brand Services) + 11 more | Find emails |
| iihs.org | #18,636 | ASP.NET, Azure API Management, Cloudflare + 6 more | Find emails |
| csusm.edu | #18,641 | Citrix NetScaler, Foundation, Google Analytics + 8 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →