---
title: "Configure alerts with Synthetic Monitoring | Grafana Cloud documentation"
description: "Choose how to configure Synthetic Monitoring alerts in Grafana Cloud, from per-check thresholds and custom PromQL rules to legacy alerting on supported stacks."
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# Configure alerts with Synthetic Monitoring

This section includes the following topics:

- [Configure per-check alerts](https://grafana.com/docs/grafana-cloud/observe-and-act/testing/synthetic-monitoring/configure-alerts/configure-per-check-alerts/)  
  Configure per-check alerts in Synthetic Monitoring for failed checks, latency, and certificate expiration, then set up notifications and inspect alert rule status.
- [Configure custom alerts](https://grafana.com/docs/grafana-cloud/observe-and-act/testing/synthetic-monitoring/configure-alerts/configure-custom-alerts/)  
  Create custom Synthetic Monitoring alert rules with PromQL in Grafana Alerting, inspect existing rules, and configure notifications with links to check dashboards.
- [Configure legacy alerts](https://grafana.com/docs/grafana-cloud/observe-and-act/testing/synthetic-monitoring/configure-alerts/configure-legacy-alerts/)  
  Configure legacy Synthetic Monitoring alerts on supported older Grafana Cloud stacks, enable them for checks, and understand rule evaluation and alert-flapping behavior.