Cache TTL

Definitions

1. The time-to-live value that determines how long a cache entry remains valid before it expires or must be refreshed. TTL tuning is a tradeoff between freshness and efficiency: shorter values reduce staleness while longer ones increase reuse and lower backend load.

   In plain English: How long a cached item stays valid before expiring.

   Example: "They shortened the cache TTL for feature flags so rollouts would propagate in seconds instead of lingering behind stale cached values."

Related Terms

• CDN
• Local Cache
• Application Cache
• Asset Fingerprint
• Cache Busting
• Cache Control
• Cache Eviction
• Time to Live Slang