What is Demerzel?

Demerzel is an operational source of truth for the servers, domains and certificates you run. A single lightweight agent observes each machine and reports what it sees; Demerzel turns that raw evidence into one clear answer to the question you actually care about: “What needs my attention today?”

How it works

• The agent observes. A single Go binary runs on each server. It only reads and summarizes — it never changes your systems, opens an inbound port, or makes decisions.
• Demerzel records evidence. Every observation is stored as immutable fact. Nothing is overwritten, so the timeline of your infrastructure is always replayable.
• Demerzel derives meaning. From that evidence it computes a Health Score, surfaces prioritized Actions (disk pressure, pending security updates, expiring certificates, failed services, vulnerabilities…), and can alert you when something crosses a threshold.

What you get

• A dashboard that ranks your fleet by what needs attention, not by hostname.
• Inventory of servers, domains and TLS certificates, kept current automatically.
• Vulnerability tracking correlated against the packages actually installed.
• Notifications by email, webhook or Slack when a threshold is crossed.
• Teams with roles, invitations, and a full activity log.

Next steps

Ready to connect your first server? Head to the Quickstart, then follow Installing the Agent.