Cache Key

Definitions

1. The identifier used to look up a value in a cache, often derived from request parameters, user context, resource IDs, locale, or other inputs that affect the result. Designing cache keys carefully is critical because missing dimensions cause incorrect data reuse and extra dimensions cause poor hit rates.

   In plain English: The identifier a cache uses to find the right stored value.

   Example: "The bug came from a bad cache key that ignored the tenant ID, so one customer's dashboard summary could be served to another."

Related Terms

• CDN
• Local Cache
• Prefetch
• Application Cache
• Cache Layer
• Cache Management
• Cache Size
• Cache Strategy
• Caching Layer
• Code Cache