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 |
|---|---|---|---|
| coldwellbanker.com | #24,260 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| slu.se | #24,273 | ASP.NET, ConsentMo, Let's Encrypt + 1 more | Find emails |
| kennedy-center.org | #24,279 | Amazon Route 53, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| plasticsurgery.org | #24,280 | ASP.NET, AddThis, Adobe Audience Manager + 23 more | Find emails |
| roboshadow.com | #24,289 | AOS, Amazon Route 53, Cloudflare Bot Management + 7 more | Find emails |
| brynmawr.edu | #24,299 | Adobe Fonts (Typekit), ConsentMo, Drupal + 6 more | Find emails |
| mediatemple.net | #24,301 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 4 more | Find emails |
| caren.nl | #24,308 | Hotwire Turbo, Nginx, Ruby on Rails + 1 more | Find emails |
| suunto.com | #24,314 | ASP.NET, Azure API Management, Cloudflare edge/CDN + 4 more | Find emails |
| theworld.org | #24,320 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| spreadshirt.com | #24,328 | Fastly, Let's Encrypt, NS1 + 3 more | Find emails |
| pr.gov | #24,331 | AWS Lambda, Cloudflare edge/CDN, Font Awesome + 12 more | Find emails |
| gp24.pl | #24,334 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 15 more | Find emails |
| spie.org | #24,339 | Imperva | Find emails |
| uniandes.edu.co | #24,358 | Cloudflare Bot Management, Cloudflare edge/CDN, Drupal + 3 more | Find emails |
| trustcommander.net | #24,381 | Amazon Route 53, DigiCert | Find emails |
| expressnews.com | #24,382 | Fastly, Varnish | Find emails |
| world-nuclear.org | #24,397 | Bootstrap, Cloudflare, Font Awesome + 8 more | Find emails |
| poupatempo.sp.gov.br | #24,406 | Bootstrap, CDN Fonts, Django + 8 more | Find emails |
| onlineaccess1.com | #24,409 | Cloudflare | Find emails |
| getsbet.ro | #24,416 | Azure API Management, Cloudflare, DigiCert + 4 more | Find emails |
| autotrade.su | #24,419 | DDoS-Guard | Find emails |
| uclm.es | #24,446 | — | Find emails |
| liga.net | #24,454 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| pv-magazine.com | #24,456 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →