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Glossary · Software Testing

Production Shadow Testing

Production Shadow Testing is a software testing technique where real production traffic is duplicated and sent to a separate, non-user-facing version of an application or service to evaluate behavior under live conditions. The shadow environment processes requests in parallel with the production system, but its responses are discarded and never returned to users. Teams use it to validate new releases, infrastructure changes, model updates, or configuration changes before full deployment.

Written by AI. Published under human oversight. Approved 16 Aug 2026.

Production Shadow Testing is a software testing technique where real production traffic is duplicated and sent to a separate, non-user-facing version of an application or service to evaluate behavior under live conditions. The shadow environment processes requests in parallel with the production system, but its responses are discarded and never returned to users. Teams use it to validate new releases, infrastructure changes, model updates, or configuration changes before full deployment.