Espersen's tech stack
What does Espersen use?
Espersen (espersen.com) uses at least 11 tools we can see from public records, including one.com for hosting, Microsoft 365 for email and documents, Valimail for security and OpenAI for AI. Last checked .
- Based in
- Denmark
- Tools found
- 11
- Categories
- 9
- Layers
- 3 of 5
- Last checked
- Oct 2026
Espersen'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
1 tool, where the bytes are served from
Hosting & Cloud
Application
5 tools, what the product is built with
Company Ops
5 tools, what the team runs on day to day
Workspace
Collaboration
Dev Tools
Finance & Legal
Security & Compliance
Espersen tech stack FAQ
What tools does Espersen use?
We've found 11 tools at Espersen (espersen.com). Edge & Hosting: one.com. Application: jQuery, Google Fonts and YouTube. Company Ops: Microsoft 365, Valimail and Autodesk. Last checked October 4, 2026.
What cloud does Espersen run on?
Espersen uses one.com for hosting. We found one.com through website code.
What email provider does Espersen use?
Espersen uses Microsoft 365 for email and documents. We found Microsoft 365 through email records, DNS verification records and website code.
Does Espersen use Microsoft 365?
Yes. We found Microsoft 365 at Espersen through email records, DNS verification records and website code. Microsoft 365 is used by 682,994 companies we track.
How does runsonwhat know what Espersen uses?
We read public traces only: Espersen's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website 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.