SLI (Service Level Indicator)
An SLI is a measurement of some aspect of service quality, such as the percentage of successful requests.
A Service Level Indicator is a quantitative measure of service quality that reflects user experience — availability, latency, or error rate. SLOs and SLAs are built on top of SLIs, so the SLI must be measured accurately.
Related
Start monitoring in under a minute
Free forever, no credit card. Upgrade when you need finer intervals.