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 |
|---|---|---|---|
| usalearns.org | #58,277 | AOS, ASP.NET, Adobe Fonts (Typekit) + 9 more | Find emails |
| paybyphone.com | #58,280 | AWS Lambda, AddThis, AppsFlyer + 18 more | Find emails |
| idfcfirstbank.com | #58,282 | Adobe Experience Manager Edge Delivery (Helix RUM), Akamai edge/CDN, Cloudflare + 4 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| curaleaf.com | #58,283 | Azure DNS, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| takepart.com | #58,291 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| asee.org | #58,300 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 2 more | Find emails |
| bentley.edu | #58,303 | Adobe Fonts, Adobe Fonts (Typekit), ConsentMo + 11 more | Find emails |
| ans.org | #58,310 | Adobe Fonts (Typekit), Apache, Bootstrap + 9 more | Find emails |
| oab.org.br | #58,311 | Google Fonts | Find emails |
| dt.gob.cl | #58,316 | Apache, Google Fonts, Sectigo + 3 more | Find emails |
| homeandsmart.de | #58,322 | Font Awesome, Google Site Kit, Google Tag Manager + 8 more | Find emails |
| bsaonline.com | #58,323 | ASP.NET, Amazon CloudFront, Atlassian Statuspage + 17 more | Find emails |
| atv.hu | #58,330 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| ucc.edu.co | #58,332 | ASP.NET, Bootstrap, Cloudflare + 13 more | Find emails |
| ibj.com | #58,337 | Chartbeat, Cloudflare, Cloudflare edge/CDN + 17 more | Find emails |
| bauhaus.se | #58,340 | New Relic, Sectigo, Webpack + 1 more | Find emails |
| gamigo.com | #58,353 | Bootstrap, Google Cloud DNS, Let's Encrypt + 7 more | Find emails |
| infinity-tracking.net | #58,358 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| click.ro | #58,370 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| finbox.in | #58,385 | Amazon Route 53, Framer, Google Ads Conversion + 6 more | Find emails |
| ithaka.org | #58,396 | Adobe Fonts (Typekit), Bootstrap, Fastly + 9 more | Find emails |
| nerc.ac.uk | #58,421 | Amazon (ACM), Apache, Azure DNS + 3 more | Find emails |
| geneve.ch | #58,426 | ConsentMo, Drupal, Google Tag Manager | Find emails |
| iciparisxl.nl | #58,427 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 2 more | Find emails |
| biblicalarchaeology.org | #58,440 | Bootstrap, Cloudflare, Cloudflare Bot Management + 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →