dev-tools
Glossary ↗Synthetic Monitoring
Synthetic monitoring checks your service by running scripted, simulated requests against it on a schedule — from outside your infrastructure — rather than waiting for real users to hit a problem. A synthetic check might load your login page, complete a checkout, or call a critical API endpoint every minute from several regions, alerting you the moment latency spikes or a step fails. Because it runs continuously and predictably, it catches outages during quiet hours and verifies flows that real traffic touches rarely but which must never break. For SaaS builders it's your first line on uptime SLAs: you learn a payment flow is down before a customer emails you. Practical note: synthetic monitoring complements, not replaces, real user monitoring — synthetics tell you whether a known-critical path works, while RUM tells you what real users actually experience. Script your top revenue and signup flows first, and run them from the regions your customers are actually in.
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