Caching the Right Data: What to Cache and What Not To
Author: WebGoodPeople
Caching only speeds a site up when you cache what is actually stable. Cache the wrong things and you do the opposite — stale data that breaks accuracy and costs you sales.
What we usually cache
- SEO blocks and content descriptions.
- Categories and catalog structure.
- Static interface elements.
What needs its own strategy
- Stock levels and prices.
- Personalized recommendations.
- Delivery and real-time availability.
A practical approach
- Split data by how stable it is and its freshness SLA.
- Assign a different TTL to each layer.
- Use warming and invalidation, not an "eternal" cache.
- Log misses and degradations.
The takeaway
Caching is not magic, it's discipline. The sharper the rules, the faster the site and the fewer the errors.
Want a read on your caching strategy? Write to us: https://webgoodpeople.com/en/contact