Implement a multi-region synthetic monitoring strategy using Datadog Synthetics

Steps

1. Create an API test (or browser test) via POST to the Datadog Synthetics API or Terraform; in the locations array, include a mix of Datadog-managed public locations spanning multiple continents (e.g., aws:us-east-1, aws:eu-west-1, aws:ap-southeast-1) to simulate geographically distributed users.
2. Set min_location_failed in the options object to a value greater than 1 (e.g., 2) so that the test only alerts when failures occur from multiple regions simultaneously; this filters out transient single-region network issues from triggering pages.
3. Add private locations for any endpoints not accessible from the public internet; deploy the private location worker container in each target region and register it in Datadog; reference private location IDs alongside public locations in the test config.
4. Configure result-based notifications using the test's message field with @-mentions or Slack handles; include location context in the message using template variables (e.g., {{location.name}}) to identify which regions are failing when an alert fires.
5. Use Synthetic CI/CD integration (datadog-ci synthetics run-tests) to execute multi-region tests as a deployment gate in CI pipelines; set --fail-on-critical-errors and --fail-on-timeout flags to block deployments on synthetic failures.
6. Review the global uptime map in the Datadog Synthetics overview page to visually identify region-specific outages; correlate multi-region failure patterns with CDN or DNS change events using the Datadog Events timeline overlay.