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 |
|---|---|---|---|
| creighton.edu | #27,218 | AddToAny, Adobe Fonts (Typekit), Ahrefs Analytics + 8 more | Find emails |
| thrivent.com | #27,241 | DigiCert, Google Fonts, Imperva + 5 more | Find emails |
| bcn.cl | #27,246 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| t-mobile.cz |
| #27,248 |
| Ahrefs Analytics, DigiCert, Google Tag Manager + 2 more |
| Find emails |
| efrontcloud.com | #27,289 | Akamai Bot Manager, Amazon Route 53, DigiCert | Find emails |
| visitberlin.de | #27,301 | Consentmanager.net, Drupal, Google Tag Manager + 6 more | Find emails |
| ipaper.io | #27,304 | AWS Lambda, Amazon Route 53, BambooHR + 14 more | Find emails |
| brilliantearth.com | #27,305 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| westermann.de | #27,309 | Font Awesome, Let's Encrypt, Nginx | Find emails |
| qiagen.com | #27,312 | Azure DNS, Azure Front Door, DigiCert + 1 more | Find emails |
| pap.pl | #27,318 | Imperva | Find emails |
| jfklibrary.org | #27,331 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 1 more | Find emails |
| templafy.com | #27,334 | Amplitude, Azure DNS, Google Fonts + 5 more | Find emails |
| eetapps.com | #27,347 | Amazon Route 53, Google Analytics, Google Tag Manager + 5 more | Find emails |
| patchmypc.com | #27,353 | Calendly, CleanTalk, Cloudflare + 19 more | Find emails |
| mdex.de | #27,354 | Cloudflare Bot Management, Cloudflare edge/CDN, ConsentMo + 8 more | Find emails |
| mayerbrown.com | #27,358 | Cloudflare edge/CDN, DigiCert, Google Tag Manager + 5 more | Find emails |
| footprintnetwork.org | #27,373 | Amazon Route 53, Apache, Let's Encrypt + 2 more | Find emails |
| wkyc.com | #27,378 | ASP.NET, Akamai Bot Manager, Akamai edge/CDN + 2 more | Find emails |
| mylife.com | #27,390 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| ntu.ac.uk | #27,399 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 1 more | Find emails |
| fapesp.br | #27,400 | Apache, DigiCert, Google Analytics + 5 more | Find emails |
| autoweek.com | #27,401 | Amazon Route 53, Next.js, OneTrust + 2 more | Find emails |
| shoppertrak.com | #27,403 | Akamai edge/CDN, Akamai mPulse, Amazon Route 53 + 5 more | Find emails |
| kaiostech.com | #27,405 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 14 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 →