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 |
|---|---|---|---|
| hw.ac.uk | #22,840 | Font Awesome, Google Tag Manager, Sectigo + 1 more | Find emails |
| uam.mx | #22,848 | Amazon (ACM), Amazon CloudFront, Amazon S3 + 3 more | Find emails |
| cdp.net | #22,862 | Azure API Management, Azure Front Door, Cloudflare + 7 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| factsmgt.com |
| #22,874 |
| Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 16 more |
| Find emails |
| naturaldiamonds.com | #22,883 | Amazon Route 53, DoubleClick (Google Ads), Google Publisher Tag + 8 more | Find emails |
| heineken.com | #22,892 | Azure API Management, Azure Front Door, CSC (Digital Brand Services) + 2 more | Find emails |
| kingarthurbaking.com | #22,912 | Drupal, Fastly, Google Tag Manager + 7 more | Find emails |
| companieshouse.gov.uk | #22,917 | Amazon Route 53, Fastly, Nginx + 2 more | Find emails |
| graphisoft.com | #22,923 | Azure DNS, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| playstream.media | #22,927 | Cloudflare, Google Analytics, Google Fonts + 6 more | Find emails |
| detran.mg.gov.br | #22,928 | Bootstrap, Font Awesome, Google Analytics + 6 more | Find emails |
| edb.com | #22,934 | — | Find emails |
| mykomon.com | #22,968 | All in One SEO, Amazon Route 53, Chart.js + 12 more | Find emails |
| salsalabs.com | #22,972 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| lanuovasardegna.it | #22,983 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| portofantwerp.com | #22,990 | Cloudflare edge/CDN, Google Tag Manager, Google Trust Services + 3 more | Find emails |
| comune.roma.it | #22,991 | DigiCert, Font Awesome, Leaflet + 4 more | Find emails |
| redtape.com | #23,013 | Cloudflare edge/CDN, Let's Encrypt, Pickrr + 4 more | Find emails |
| rcell.me | #23,016 | Next.js, Nginx, Turbopack + 2 more | Find emails |
| vodafone.cz | #23,022 | Amazon CloudFront, Amazon S3, DigiCert + 4 more | Find emails |
| odexglobal.com | #23,023 | Amazon Route 53, Apache, Bootstrap + 13 more | Find emails |
| foxsports.com.au | #23,026 | Adobe Audience Manager, Akamai Bot Manager, Akamai Edge DNS + 9 more | Find emails |
| mailguard.com.au | #23,033 | AOS, AdRoll, Bootstrap + 13 more | Find emails |
| sutterhealth.org | #23,040 | Azure DNS, Brightcove, Next.js + 4 more | Find emails |
| autoelevate.com | #23,053 | AddToAny, Bootstrap, Clicky + 16 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →