Performance Optimization
Caching Strategy & CDN
Caching converts repeated expensive work into instant answers: opcode, object, page, and edge layers each multiply capacity. A designed caching strategy, with correct invalidation rules and CDN edge placement, absorbs traffic spikes that would flatten uncached stacks.
Key points
- Layer caches deliberately: OPcache, object cache, page cache, CDN edge.
- Define invalidation rules per content type before enabling aggressive TTLs.
- Exclude carts, accounts, and personalized pages from shared caches.
- Use cache-friendly headers: long max-age plus versioned asset URLs.
- Place a CDN in front for static assets and full-page edge caching.
- Monitor hit ratios per layer; low ratios mean misconfiguration.
- Purge surgically on publish; avoid full purges that thundering-herd origins.
- Load-test cached vs uncached to quantify headroom honestly.
Field note
Watch hit ratios per layer from day one. A cache with a 12% hit ratio isn't a cache, it's decoration, and the fix is almost always exclusion rules, not more memory.
Frequently asked questions
Why do cached sites still feel slow?
Usually low hit ratios, uncacheable pages, or slow origins on misses, all diagnosable from headers and logs.
Can caching break dynamic content?
Only when misconfigured. Proper exclusions keep dynamic pages correct while static parts fly.
Which CDN should we use?
Depends on traffic shape, budget, and needed features, we evaluate and configure, not just enable.
How do you handle logged-in users?
Private-cache rules and edge bypass for sessions; shared cache only for anonymous traffic.
How Kinetikatech helps with performance optimization
Honestly, most teams come to us after trying it themselves first: Server tuning, database optimization, caching, and front-end speed work that cuts load times and hosting costs. Our Website Speed Optimization and Server Management service exists so you don't have to learn performance optimization the hard way, we handle the setup, the watching, and the 3 a.m. surprises.