Safely Test Code
on Live Production Traffic
Investigate systems behavior under real runtime conditions without waiting for redeploys or risking users.
There is no substitute for real traffic
Staging cannot simulate real tenants, data, or dependency pressure. Evaluate behavior inside live, sandboxed environments without redeploys or state changes.
Generate runtime
evidence on demand
Add dynamic telemetry exactly where performance degrades.
Use a secure,
read-only sandbox
All tests run inside a read-only remote sandbox, so running state is not affected.
Enable AI-native
validation workflows
Allow AI agents and engineers to validate behavior grounded in live execution.
How Lightrun turns production into a validation layer
Validate behavior under real traffic without redeploy cycles, or adding in logs to the code.
Inject targeted instrumentation
under live load
Capture variable values, call stacks, object state, and payloads as real requests execute your code.
Validate feature flags
and code paths
Confirm branches, flags, and conditions behave as expected using conditional instrumentation that activates only when criteria are met.
Verify downstream dependencies
in real conditions
Inspect third-party integrations, database calls, and API responses as production traffic flows through them, inside a controlled, read-only environment.
Why safe production testing is esential
Validate behavior where it actually runs
Avoid false confidence from staging simulations.
Reduce release risk
Validate fixes directly in live environments without rebuilds or rollbacks.
Accelerate delivery safely
Power engineerings to ship faster without sacrificing reliability.