Short answer: No — and in most cases, you shouldn’t install one.
PressHarbor runs on WP Cloud, which already provides multiple layers of caching at the infrastructure level. These systems are tightly integrated and designed to work together. Adding a traditional WordPress page caching plugin (like WP Super Cache or similar) is unnecessary and can sometimes cause problems.
What caching is already built in?
PressHarbor sites automatically benefit from several caching layers:
- Edge Cache
CDN-level caching served from global edge locations, reducing latency for visitors around the world. - Batcache (full-page caching)
Intelligent full-page caching handled at the application level. - Object Cache
Caches database queries to reduce load and speed up dynamic requests.
These layers are built into the platform and require no configuration on your part.
Why we don’t recommend page caching plugins
Installing an additional page caching plugin can:
- Interfere with the platform’s built-in cache logic
- Lead to stale or inconsistent content
- Create confusing cache invalidation behavior
- Make performance issues harder to diagnose
Because caching is already handled at the infrastructure level, adding another full-page cache usually provides no benefit — and can sometimes make things worse.
How to improve performance instead
If you’re looking to further improve performance, the best gains usually come from front-end optimizations, such as:
- Optimizing images
- Reducing heavy JavaScript or CSS
- Auditing third-party plugins
- Removing unused themes or plugins
These changes complement the built-in caching rather than fighting it.
TL;DR
✓ PressHarbor already includes edge, full-page, and object caching
✗ Page caching plugins are unnecessary and not recommended
► Focus on front-end optimizations for best results
If you’re unsure whether a specific plugin or setup makes sense for your site, feel free to open a support ticket and we’ll be happy to take a look.
