# Uptime Issues

## Learn how to use the information on the Issue Details page to debug an error issue.

An uptime issue is a grouping of detected downtime events for a specific URL. A downtime event is generated by active uptime alerts when HTTP requests fail to meet our [uptime check criteria](/product/uptime-monitoring/#uptime-check-criteria).

[![Uptime issue details](/_next/image/?url=%2Fmdx-images%2Fuptime-issue-details-56UWHTRI.png%232026x1756\&w=3840\&q=75)](/mdx-images/uptime-issue-details-56UWHTRI.png)

## [Traced Errors](#traced-errors)

Uptime checks made against web services configured with one of Sentry's supported SDKs contain a [trace](/concepts/key-terms/tracing/) that can be used to track detected errors resulting from failed HTTP uptime checks. The trace navigator allows you to browse through potential root causes of your downtime and is a powerful tool for quickly identifying and resolving issues.

## [Issue Lifecycle](#issue-lifecycle)

Uptime issues are grouped by the monitored URL and created upon the first detected downtime. Sentry automatically resolves an ongoing uptime issue when the monitored URL returns to a healthy status and meets our [uptime check criteria](/product/uptime-monitoring/#uptime-check-criteria). If the URL experiences subsequent downtime, the issue's status will change to regressed.
