# Cache Invalidation

> The activity of removing or refreshing cached entries so stale data is not served.

Record: `lex:cache-invalidation`
Kind: activity
Layer: [Performance Core](https://banes-lab.com/records/layer/performance-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-cache-invalidation

## category

- [Scalability / Performance / Optimization](https://banes-lab.com/records/lex-category/scalability-performance-optimization.md)

## referenced-by

- [CDN / Edge Caching](https://banes-lab.com/records/arch/cdn-edge-caching.md)