Reference

SRE Reference Guides

Plain-language explanations of the core concepts in site reliability engineering and observability.

What is Observability?

Metrics, logs, and traces explained — and why observability is more than just monitoring.

SLO vs SLA vs SLI

The most confused trio in reliability engineering, clearly defined with real examples.

Error Budgets Explained

How to define, calculate, and operationalize error budgets in your engineering team.

DORA Metrics Explained

The four key metrics of software delivery performance and what the research actually shows.