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7.7Metrics to Track from Synthetic Monitoring
| Metric | Purpose | Alert Threshold |
|---|---|---|
| Pass/fail rate per journey | Overall health | Any failure |
| Availability (% of passing runs) | SLO compliance | < 99.5% over 7 days |
| Response time per step | Performance tracking | > 2x baseline |
| Regional availability | Geographic health | Any region < 99% |
| Screenshot diff score | Visual regression | > 10% pixel difference |
Synthetic monitoring is the night watch of your production environment. When your team is asleep, synthetic tests are verifying that critical user journeys still work.