Office365's tech stack
What does Office365 use?
Office365 (office365.com) uses at least 6 tools we can see from public records, including Microsoft Azure for hosting, Microsoft 365 for email and documents, Akamai for content delivery and GlobalSign for security. Last checked .
- Based in
- Redmond, United States
- Legal name
- Microsoft Corporation
- Tools found
- 6
- Categories
- 5
- Layers
- 3 of 5
- Last checked
- Oct 2026
Office365's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
2 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Go-to-market
1 tool, how they find and keep customers
Marketing
Company Ops
3 tools, what the team runs on day to day
Workspace
Security & Compliance
Office365 tech stack FAQ
What tools does Office365 use?
As of October 2026, runsonwhat has found 6 tools at Office365 (office365.com) in public records. Edge & Hosting: Microsoft Azure and Akamai. Company Ops: Microsoft 365, GlobalSign and DigiCert. Last checked October 20, 2026.
What cloud does Office365 run on?
Office365 uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure and DNS records. Microsoft Azure is used by 46,157 companies runsonwhat tracks.
What email provider does Office365 use?
Office365 uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 706,401 companies runsonwhat tracks.
Does Office365 use GlobalSign?
Yes. runsonwhat found GlobalSign at Office365 through DNS records that point at GlobalSign. GlobalSign is a Security & Compliance tool used by 54,524 companies runsonwhat tracks.
How does runsonwhat know what Office365 uses?
runsonwhat reads public records only. Of the 6 tools at Office365, 3 were found through DNS records, 2 through subdomains that point at the vendor and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and office365.com about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.