> ## Documentation Index
> Fetch the complete documentation index at: https://docs.use.observer/llms.txt
> Use this file to discover all available pages before exploring further.

# Documentation

> Reference and guidance for Observer, the metrics-driven status page platform.

This section covers product setup, day-two operations, and concepts.
The two adjacent tabs are scoped narrower: the
[Observer Agent](/agent/overview) tab covers the on-premise data plane, and
the [API](/api/overview) tab is the generated REST reference.

## Quickstart

Pick the metric path that matches your environment, then proceed
to SLO and status page. The two metric quickstarts are
alternatives, not sequential; complete one of them.

<Columns cols={2}>
  <Card title="First metric (Prometheus)" href="/docs/quickstart/first-metric">
    Install the agent, evaluate a PromQL query, and report status to the cloud.
  </Card>

  <Card title="First metric (HTTP probe)" href="/docs/quickstart/first-metric-http">
    Probe an endpoint directly when no Prometheus server is in place.
  </Card>

  <Card title="Define your first SLO" href="/docs/quickstart/first-slo">
    Wrap a metric in a service level objective and read the error budget.
  </Card>

  <Card title="Publish your first status page" href="/docs/quickstart/first-status-page">
    Compose services, metrics, and SLOs into a customer-facing URL.
  </Card>
</Columns>

## Guides, reference, and concepts

The remaining sections in the sidebar are organised by purpose:

* **Guides** cover task-shaped configuration: customer-scoped pages,
  password protection, custom domains, alert integrations (Slack, PagerDuty, webhooks, and
  others), theme
  customization, and migration from other status page tools.
* **Reference** covers webhook payload shapes, audit log event
  names, threshold semantics, and the incident lifecycle.
* **Concepts** covers the operating model: metric-based status,
  service level objectives, customer scopes, threshold semantics.


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