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 |
|---|---|---|---|
| atleticodemadrid.com | #33,359 | Brightcove, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| transfermarkt.fr | #33,368 | AWS WAF, Amazon CloudFront, Let's Encrypt + 1 more | Find emails |
| cite-sciences.fr | #33,373 | Apache, DigiCert, Google Tag Manager + 2 more | Find emails |
| #30 (Tranco) |
| Find emails |
| 5 | microsoftonline.com | #38 (Tranco) | Find emails |
| moneylion.com | #33,375 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 4 more | Find emails |
| ri.se | #33,403 | Let's Encrypt | Find emails |
| te.eg | #33,432 | Bootstrap, Font Awesome, Google Analytics + 6 more | Find emails |
| belgiantrain.be | #33,436 | Cloudflare Bot Management, Cloudflare Images, Cloudflare edge/CDN + 2 more | Find emails |
| brusselsairport.be | #33,440 | Akamai Edge DNS, Cookie Information, DigiCert + 9 more | Find emails |
| leonardo.com | #33,444 | Apache, Bootstrap, Citrix NetScaler + 6 more | Find emails |
| ginatricot.com | #33,446 | Amazon Route 53, Hotwire Turbo, Let's Encrypt + 8 more | Find emails |
| waseda.ac.jp | #33,448 | — | Find emails |
| ruv.is | #33,454 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 4 more | Find emails |
| mediaxchange.co | #33,474 | Apache, Bootstrap, Express + 10 more | Find emails |
| iptwins.com | #33,477 | Apache, Font Awesome, Sectigo + 4 more | Find emails |
| univr.it | #33,478 | Bunny Fonts, Cookiebot, Liferay + 6 more | Find emails |
| jwpub.org | #33,479 | Amazon Route 53 | Find emails |
| auschwitz.org | #33,502 | Bluesky, Bootstrap, Google Analytics + 6 more | Find emails |
| flybreeze.com | #33,503 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| tiobe.com | #33,510 | Apache, Cookiebot, Google Fonts + 10 more | Find emails |
| pub.ro | #33,514 | — | Find emails |
| iphost.gr | #33,517 | Google Fonts, Iconify, LiteSpeed + 3 more | Find emails |
| workjam.com | #33,518 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| discovery.co.za | #33,521 | ASP.NET, Apache, CrazyEgg + 5 more | Find emails |
| vertafore.com | #33,523 | Amazon Route 53, ConsentMo, Cookie-Script + 12 more | Find emails |
| aicpa-cima.com | #33,531 | Contentful, DigiCert, Google Fonts + 5 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 →