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Speeding up your WordPress application is very much connected to having a persistent caching mechanism to serve growing traffic needs with minimum load on server resources. There are different types of caching, such as page caching, browser caching, etc. Breeze plugin by Cloudways specializes in taking care of all these types of caching and optimizing your WordPress applications.

There's one more type called object caching which can significantly improve your website's performance. Cloudways uses external persistent object caching solutions like Redis and Memcached at the server level. However, to take object caching to the next level at the application layer, Cloudways has partnered with Object Cache Pro to leverage cutting-edge Redis-powered object caching and compression technology in WordPress applications.

In this article, you will learn about speeding up your WordPress application using the Object Cache Pro plugin.

What is Object Caching

WordPress is heavily dependent on the database; therefore, the efficacy and efficiency of the WordPress application are critical to the performance.

Object caching is a method of storing database query results to serve future requests of the same data from the cache without needing to query the database. Thus, it can help ease the load on the database and server and deliver queries faster.

How to Install Object Cache Pro Plugin

Installing the Object Cache Pro plugin for new and existing WordPress applications is very straightforward.

Important

Please note that installing the Object Cache Pro plugin will create a conflict if you already have another object caching plugin. In such a case, you'll be required to manually remove that existing object caching plugin before you can take advantage of Object Cache Pro.

Requirements

Supported Applications

Object Cache Pro plugin comes pre-packaged with Cloudways-optimized WordPress, WooCommerce, and Multisite applications. However, it is not offered with a clean WordPress application.

Installation for New Server and Application

Object Cache Pro plugin is pre-installed and activated when you launch a new server with a supported WordPress application. The new server should also meet the mandatory requirements.

Important

If you add any new WordPress applications to the same server, they will also have the Object Cache Pro plugin installed and activated.

Installation For Existing Applications

To install the Object Cache Pro plugin on your existing WordPress applications, you can use the following steps:

  1. Ensure your existing server meets the requirements for installing the Object Cache Pro plugin.

  2. Next, install Redis by visiting the Settings and Packages option. If you already have Redis installed, you need to uninstall and reinstall it.

That's it! Once Redis is installed, the Object Cache Pro plugin will automatically be configured on all the supported WordPress applications available on that server.

Important

If you add any new WordPress applications to the same server, they will also have the Object Cache Pro plugin installed and activated.

How to Use Object Cache Pro Plugin

Object Cache Pro plugin is automatically configured by Cloudways when you install it. Here's how you can access your plugin dashboard.

  1. Sign in to your WordPress admin panel using your credentials. Your admin panel URL and credentials are also available on the Cloudways Platform.

  2. Next, visit Plugins > Installed Plugins in your WordPress admin panel.

  3. Next, click Must-Use Plugins as Object Cache Pro plugin works as a Must-Use plugin.

  4. Finally, click Health.

Support Scope

Cloudways support scope is limited to installing the Object Cache Pro plugin and Redis for supported WordPress applications. Other configurations and modifications are supposed to be handled by the website owners.

The installation-related support is also limited for servers running PHP 7.3 or higher as per the requirements.

How to Deactivate Object Cache Pro Plugin

You can deactivate the Object Cache Pro plugin on a specific application by following these steps:

  1. First, visit your WordPress admin panel and navigate to Dashboard > Home.

  2. Next, click Disable inside the Object Cache Pro widget. This action only deactivates the plugin, not uninstall it, so you can always enable it using the same button.

Important

Please note that disabling or uninstalling Redis on a server will result in deactivating the Object Cache Pro plugin on all your WordPress websites hosted on that server.

WordPress is highly dependent on database performance. If you run an extensive website or a WooCommerce-based store, you can quickly enable persistent object caching on it using the Object Cache Pro plugin. It will cache database-intensive tasks to make your application more resilient and faster with fewer resources.

That's it! We hope this tutorial was helpful. If you need any help, then feel free to search your query on Cloudways Support Center or contact us via chat (Need a Hand > Send us a Message). Alternatively, you can also create a support ticket.

FAQs

Is the Object Cache Pro plugin free to use?

The Object Cache Pro plugin is free for Cloudways customers to use with supported WordPress applications.

Can I use this plugin on a clean WordPress installation?

Clean WordPress installation refers to a WordPress application without Cloudways optimizations; therefore, the Object Cache Pro plugin is not included. It is only available for supported WordPress applications.

How can I update the Object Cache Pro plugin?

Cloudways manages the Object Cache Pro plugin; therefore, all the updates are handled by Cloudways when available.

I already have an object caching plugin installed. Can I still install the Object Cache Pro plugin?

Installing the Object Cache Pro plugin will create a conflict if you already have another object caching plugin. In such a case, you’ll be required to manually remove that existing object caching plugin before you can take advantage of the Object Cache Pro plugin.

Below is the list of some common object caching plugins that you must remove before enabling the Object Cache Pro plugin.

  • Use Memcached

  • Memcached Redux

  • Memcached Object Cache

  • Redis Object Cache

  • Cachify

  • Memcached Object Cache

  • WP Redis

I have the free Redis Object Cache plugin installed; how can I switch to the Object Cache Pro plugin?

First, you need to uninstall the existing Redis Object Cache plugin and install the Object Cache Pro plugin.

Can I use this plugin with Breeze or any other page caching plugin (e.g., WP Rocket, Swift Performance, etc.)?

The Object Cache Pro plugin is dedicated to object caching. You can use the Object Cache Pro plugin with the following page cache plugins without issues.

  • Breeze

  • WP Rocket

  • WP Fastest Cache

  • Swift Performance

  • WP Super Cache

  • Cache Enabler

  • WP-Optimize

Besides the plugins mentioned above, you can use the Object Cache Pro plugin with any other page caching plugins that don’t offer object caching functionality.

How can I use the Object Cache Pro plugin with page caching plugins that also offer object caching?

In that case, you need to disable object caching settings from the respective plugin’s dashboard before installing the Object Cache Pro plugin. Here are some plugins that offer page and object caching:

  • W3 Total Cache

  • LiteSpeed Cache

Should I use Varnish or Redis? Which one is better?

Varnish Cache (often called “Varnish”) is a server-side page caching mechanism; whereas, Redis is used to power up object caching using the Object Cache Pro plugin on your WordPress application.

You can use Varnish and Redis simultaneously as both caching mechanisms serve different purposes to boost your website performance.

Where is the analytics section of the Object Cache Pro plugin?

The analytics section of the Object Cache Pro plugin is currently unavailable. However, the widget is available on the WordPress admin panel dashboard to monitor plugin status, view cache size, flush cache, and deactivate the plugin.

I have a 1GB RAM server, so how can I install the Object Cache Pro plugin?

Your 1GB RAM server does not qualify for the Object Cache Pro plugin installation as per the mandatory requirements; therefore, you can scale up your existing server to at least 2GB RAM or higher to install the Object Cache Pro plugin. If you previously had Redis installed, you need to uninstall and reinstall it after scaling up your server.

Will the Object Cache Pro plugin remain active if I downgrade my AWS/GCE server to 1GB RAM?

The Object Cache Pro plugin will be deactivated once you downgrade to incompatible server specifications. As per the mandatory requirements for Object Cache Pro plugin installation, the server must have 2GB RAM or higher.

I have a server running PHP 7.2 (or lower), so how can I install the Object Cache Pro plugin?

Your server running PHP 7.2 does not qualify for the Object Cache Pro plugin installation as per the mandatory requirements; therefore, you can upgrade to PHP 7.3 or higher, e.g., PHP 8, to install the Object Cache Pro plugin. If you previously had Redis installed, you need to uninstall and reinstall it after upgrading the PHP version.

Will the Object Cache Pro plugin remain active if I downgrade the PHP version to 7.2 or lower?

The minimum version required is PHP 7.3; therefore, downgrading it to a lower version will deactivate the Object Cache Pro plugin.

Can I use this plugin with staging applications?

Yes, you can use the Object Cache Pro plugin with staging applications.

I already have the Object Cache Pro plugin installed and active on my WordPress application; how can I create a staging application with the Object Cache Pro plugin?

Here are three cases to answer this question:

Same server: If you create a staging application on the same server where your actual WordPress application is hosted, your staging application will also have the Object Cache Pro plugin installed and active.

Different server: If you create a staging application on a different server, then that server must meet the mandatory requirements for the plugin installation. If it meets the requirements, your staging application will have the Object Cache Pro plugin installed and active. If it does not meet the requirements, the plugin will not be installed on the staging application.

New server: If you create a staging application on the new server with 2GB RAM or greater, your staging application will also have the Object Cache Pro plugin installed and active because the new server will automatically meet the mandatory requirements. However, if you choose a new server size less than 2GB, the plugin will not be installed on the staging application.

I already have the Object Cache Pro plugin installed and active on my WordPress application; how can I clone my application with the Object Cache Pro plugin?

Here are three cases to answer this question:

Same server: If you clone the application on the same server where your actual WordPress application is hosted, your cloned application will also have the Object Cache Pro plugin installed and active.

Different server: If you clone the application on a different server, then that server must meet the mandatory requirements for the plugin installation. If it meets the requirements, your cloned application will have the Object Cache Pro plugin installed and active. If it does not meet the requirements, the plugin will not be installed on the cloned application.

New server: If you clone the application on the new server with 2GB RAM or greater, your cloned application will also have the Object Cache Pro plugin installed and active because the new server will automatically meet the mandatory requirements. However, if you choose a new server size less than 2GB, the plugin will not be installed on the cloned application.

I already have the Object Cache Pro plugin installed and active on my WordPress applications; how can I clone my server with the Object Cache Pro plugin?

If you clone your server and choose a server size 2GB RAM or greater, your cloned server will also have the Object Cache Pro plugin installed and active on all the supported WordPress applications because the new server will automatically meet the mandatory requirements. However, if you choose a server size less than 2GB, the plugin will not be installed.

How can I deactivate the Object Cache Pro plugin on one application but keep it running on the other applications?

You can deactivate the Object Cache Pro plugin on a specific application by following these steps.

What happens if I uninstall the Redis?

Disabling or uninstalling Redis on a server will result in deactivating the Object Cache Pro plugin on all your WordPress websites hosted on that server.

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