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 |
|---|---|---|---|
| grameenphone.com | #47,269 | DigiCert, Font Awesome, Google Analytics + 7 more | Find emails |
| up.com | #47,276 | Apache, DigiCert, Fastly + 1 more | Find emails |
| awesomebooks.com | #47,292 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| britishpathe.com | #47,296 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| corendon.nl | #47,305 | Azure API Management, Azure DNS, Google Analytics + 3 more | Find emails |
| tennisexpress.com | #47,312 | Cloudflare Bot Management, Cloudflare edge/CDN, ConsentMo + 12 more | Find emails |
| uce.edu.ec | #47,322 | Apache, Google Analytics, Liferay + 1 more | Find emails |
| opentv.com | #47,332 | Amazon CloudFront, Amazon S3, Cloudflare + 4 more | Find emails |
| heart.co.uk | #47,335 | AppsFlyer, DigiCert, DoubleClick (Google Ads) + 3 more | Find emails |
| floridabar.org | #47,339 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| stm.info | #47,345 | DigiCert, Drupal, Google Tag Manager + 2 more | Find emails |
| correiodopovo.com.br | #47,351 | Azion, Azure DNS, Google Tag Manager + 2 more | Find emails |
| 3.dk | #47,356 | Azure Front Door, DigiCert, Optimizely + 3 more | Find emails |
| cff.org | #47,367 | Akamai Bot Manager, Amazon Route 53, Drupal + 2 more | Find emails |
| mescius.com | #47,368 | GSAP, Google Analytics, Google Fonts + 8 more | Find emails |
| diariodecadiz.es | #47,379 | Amazon CloudFront, Didomi, Google Tag Manager | Find emails |
| efortuna.pl | #47,382 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| atlantichealth.org | #47,392 | ASP.NET, Apache, Coveo + 7 more | Find emails |
| hrewards.com | #47,394 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| grantland.com | #47,413 | DoubleClick (Google Ads), Google AdSense, Google Publisher Tag + 9 more | Find emails |
| ithaca.edu | #47,415 | Cloudflare, DoubleClick (Google Ads), Drupal + 7 more | Find emails |
| protiviti.com | #47,420 | Amazon Route 53, Cloudflare edge/CDN, Drupal + 5 more | Find emails |
| mfilterit.net | #47,424 | Amazon Route 53, Let's Encrypt, Wix + 1 more | Find emails |
| jayski.com | #47,425 | Amazon Route 53, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| oie.int | #47,433 | Cloudflare, Cloudflare edge/CDN, Fancybox + 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-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →