What is object caching and what are the benefits?
The object cache stores recurring database queries in RAM so that they don't have to be processed again each time a page is called up.
This reduces the loading time and improves the performance of the backend and repeatedly used queries, especially for dynamic content – such as in shops or membership sites.
A typical note from the WordPress “Site Health” area reads:
“A persistent object cache could improve performance.”
→ This object cache is now being supported by Raidboxes with Redis as part of the Dynamic+ plans.
💡 Redis optimizes performance where many recurring queries are made to the database. It doesn't replace frontend caching – rather, it works hand in hand with our server cache and generally ensures more stable response times for dynamic workloads.
How can I activate the Object Cache (Redis)?
There are currently three ways to activate Redis for a Box:
Upgrade an existing contract through the support
Example: from a “Starter” contract to “Starter Dynamic+”.
Activate Demo Box with Dynamic+ plan
Simply select a Dynamic+ plan in the checkout and benefit directly from Redis object caching.
Create a new Box directly in the Dynamic+ plan
Create and test a new Box with Redis risk-free thanks to the free demo time.
Available plans
Plan | CPU | RAM | Varnish Cache | Redis |
Starter Dynamic | 2 GB | 4 GB | 96 MB | 32 MB |
Pro Dynamic | 4 GB | 8 GB | 192 MB | 64 MB |
How can I tell that Redis object caching is active?
You can check whether the object cache is active on your Box in several ways:
WordPress Site Health
→ Navigate to Passed tests where the message appears: “A persistent object cache is in use”
LiteSpeed Cache Plugin
→ As pre-installed requirement on Dynamic+ Boxes the plugin automatically recognizes that Redis is active.
Query Monitor Plugin
→ Shows under Database Queries whether and how many database queries have been cached. A very useful tool for directly analyzing object caching behavior.
New functions in the Box settings
If you're already using a Dynamic+ plan, the server area of your Box settings will be extended by a new configuration option:
Raidboxes Object Cache Plugin: On and off switch
→ This option enables or disables the Redis integration plugin.
Notes on plugin use and compatibility
The pre-installed LiteSpeed Cache plugin doesn't require any further configuration – it only serves as a technical Redis connector. You can simply ignore it in the WordPress backend of your website.
If you prefer to use your own caching plugin (e.g. Redis Object Cache), it's possible to install it as enabler for Redis object caching.
To do so, simply disable the Raidboxes Object Cache plugin in the Box settings to avoid conflicts due to parallel caching mechanisms and install a Redis plugin of your choice.