About

deep-365.com is a small set of browser-side tools for people who administer Microsoft 365, Entra ID and Windows Server for a living.

Privacy, concretely

There is no backend. Every page is static HTML, CSS and JavaScript served from ordinary web hosting. There is no analytics script, no cookie, no font loaded from a third party, no error reporting, and no request to Microsoft Graph or any other API. When you paste a token or a set of message headers, the parsing happens in your browser's JavaScript engine and the result is written straight into the page.

You do not have to take that on trust. Open your browser's network tab, load a tool, paste something, and watch: there are no requests after the initial page load. Or save the page to disk, disconnect from the network, and open it — it still works.

Accuracy

The reference data built into these pages — Entra directory role template IDs, Microsoft first-party application IDs, SCL and BCL meanings, composite-authentication reason codes — comes from Microsoft's published documentation. Microsoft changes these; if you find something stale or wrong, it is worth checking against Microsoft Learn before acting on it.

These tools help you read a value. They do not replace looking at the tenant.

Who

Built by an IT consultant working on Microsoft 365 and Microsoft infrastructure — Active Directory, Exchange, SharePoint, Intune and Entra ID — mostly because these were the five things worth building once instead of doing by hand every month.