2 min readAn original planning guide. Use the linked primary documentation for platform details and the supported procedure for your environment.
List the layers
Include browser, CDN, reverse proxy, page cache, application data cache, and DNS where they are actually used.
Describe cached content
For each layer, record the stored item, its freshness policy, and the supported refresh or invalidation route.
Identify exceptions
Mark personalized pages, carts, account areas, and changing inventory where correctness requires special handling. Use the platform's documented behavior.
Trace one change
Publish a controlled update and inspect the relevant layers and response evidence. Record where the old value remains visible.
Worked scenario
See the plan in practice.
A page cache has refreshed but the browser still reuses an old stylesheet. The map identifies two different stored resources and their refresh paths.
Review your result
Your acceptance checklist
Layers named- Exceptions recorded
- Change traced
Use these checks to identify gaps in your cache layer map. Assign an owner to any unresolved item before the next dependent step.
The terms behind the task
- CacheA store of reusable results or data that can reduce repeated retrieval or computation.
- Browser cacheA browser's local storage of reusable web responses, governed by caching rules and validation behavior.
- CDNA content delivery network distributes delivery through geographically spread infrastructure that can cache or proxy content.
Primary references
For the underlying concepts and current platform details:
