# SLA

> Service level agreement: a contract with users that includes consequences for meeting or missing the SLOs it contains.

URL: https://pagerless.dev/glossary/sla
Updated: 2026-10-22

## Related terms

- [SLO](https://pagerless.dev/glossary/slo): Service level objective: a target value or range for an SLI, such as 99.9% of requests succeeding over 30 days.
- [Uptime](https://pagerless.dev/glossary/uptime): The share of time a service is available

Sources:
1. [Google SRE book, ch. 4: Service Level Objectives](https://sre.google/sre-book/service-level-objectives/)