Webmail

Who left Outlook Web App, and who still runs it

13 websites in the top 1M run Outlook Web App, observed directly from the rendered page in the July 2026 crawl.

Some companies running Outlook Web App

Every row in a full list carries the prospect's whole detected stack.

gwdg - gesellschaft für wissenschaftliche datenverarbeitung mbh göttingen gwdg.de51-200 · information technology and services · 5 technologies

lancloud lancloud.ru51-200 · information technology and services · 5 technologies

inserm inserm.fr10001+ · research · 17 technologies

câmara municipal da lourinhã cm-lourinha.pt1-10 · government administration · 4 technologies

eskişehir technical university eskisehir.edu.tr1001-5000 · higher education · 53 technologies

universitätsmedizin essen ume.de5001-10000 · hospital & health care · 4 technologies

Not currently available as a list.

What else they run

Microsoft ASP.NET 100%Windows Server 92%IIS 92%HSTS 23%Application Request Routing 15%Microsoft 365 15%GoDaddy 8%Font Awesome 8%Google Hosted Libraries 8%Chart.js 8%

Share of a 13-domain sample of Outlook Web App users that also run each.

Company size

51-2002

1-101

10001+1

1001-50001

5001-100001

Others in Webmail

Apple iCloud Mail 33,413 Proton Mail 1,289 RoundCube 406 Zimbra 160 RainLoop 0 SquirrelMail 0 Sympa 0 CrossBox 0