Service level objectives (SLOs) are used to measure a service's reliability and ensure it meets its performance goals. Adopting SLOs as an SRE best practice helps teams ensure their services perform well and consistently deliver value to users. To gain the greatest benefit from SLOs, teams need ongoing visibility into how well their services are performing relative to their objectives. Two types of alerts can be created: error budget alerts track consumption against a service's error budget, while burn rate alerts notify teams if they're consuming their error budget more quickly than expected. Burn rate alerts provide a proactive approach to SLO monitoring and can detect subtle changes that may impact user experience. Teams can choose from two approaches to decide on a burn rate alert threshold: estimating the time required to recover or setting a percentage of error budget consumption. By creating these alerts, teams can stay informed about issues that could deplete their error budget and ensure their services remain reliable.