# Read logs and diagnose

What the platform records about your site and how to use it when something is slow or erroring. Start with [what the platform logs](/cloud-platform/observability/logs/).

- [What the platform logs](/cloud-platform/observability/logs/): Every log a Cloud Platform environment produces, what question each one answers, and the two ways to get at them (streaming live or downloading files).
- [Diagnose a slow or erroring site](/cloud-platform/observability/diagnose/): Symptom-first triage for a Cloud Platform environment. Which log or metric answers "why is it slow", "why is it erroring", and "why didn't my job run".