AccelerateWP & Smart Advice

AccelerateWP is an improved and updated WP Optimization Suite.


Performance has a great impact on the site attendance and efficiency. We know that many customers want an auto tool to resolve problems with site performance. Many sites are built with WordPress CMS. So, we decided to find and implement a complex solution – the AccelerateWP tool to help our customers increase their site performance.

There are two modules in the AccelerateWP: Object Cache Module and Site Optimization Module.

The Smart Advice tool helps to decide which module will be most effective and helpful for particular website performance optimization.

Object caching explanation

Caching is a mechanism of accessing frequently used data quickly. This mechanism is really helpful in case your site needs to process multiple pages per second as requests come in. If data is stored in cache the server does not need to process it time after time because such data can be obtained from the cache. So, visitors get it faster – it is really fantastic!

And one more interesting thing is that there are different types of caching.

  • One type of caching is already used by your browser (client-side).
  • And another type of caching (one of server-side) is used to store database queries data and is called the Object cache.

The speed of processing queries to the database is very important for WordPress CMS, because all content data is stored in the WordPress database. So, if you activate (turn on) the Object cache module it means that you activate some storage to cache queries from your clients to the WordPress database. Every time users of your site request some content for the web page it makes a request to the WordPress database.

Our solution for the Object cache module

The solution is based on the Redis Object cache and automatically sets up the Redis key-value storage and configures it appropriately.

The storage is located in the RAM of the server which stores data from the WordPress database queries. It caches objects between multiple page loads. But restarting the Object cache module daemon (very rare situation) will erase the data in the storage, and some period of time is needed to collect the data again.

When we recommend to use Object cache module:

  • Websites used for extremely active exchange of information (forums, blogs, etc..)
  • Websites with too many requests running at the same time
  • Websites having important pages that cannot be cached entirely and exclude from the "whole page caching" due to any reason

How can we monitor the state of the Object cache module?

  • Status of the storage (or Object cache database)
  • Cache memory usage (or memory usage by the Object cache module)
  • Max Memory usage limit (or limit for memory using by the Object cache module)

Object Cache Module Limitations

For the first beta release, there are the following limitations:

  • Required ea-PHP version 7.4 and 8.0.
  • Recommended WordPress version 3.7 and higher.
  • Object Cache module conflicts with other WordPress Caching plugins.
  • Object Cache module conflicts with the Snuffleupagus php-extension.
  • Object Cache module does not work with WordPress Multisite mode.

Site Optimization Module

Coming soon...

Smart Advice

How does Smart Advice make a decision which module needs to be activated?

Smart Advice has information about types of slow requests for the site for the appropriate period of time and creates new advice based on it. Advices are generated automatically so no additional configuration is needed.

AccelerateWP User Interface

  1. Go to the list of software on your control panel and find the AccelerateWP icon:

  1. Open plugin interface

  1. You can turn on the Object Cache module or the Site Optimization module by yourself or via the Smart Advice suggestion.

AccelerateWP information panel

On the AccelerateWP information panel you can find the following statuses.

  • Object Cache module Database status

It will be offline if there is no sites using the Object Cache plugin.

  • Amount of memory used by the Object Cache database


In the first beta release this memory usage includes memory usage by the inner Object Cache plugin structures. So, it cannot be zero.

  • Limit for the Object Cache database

Click on the to change the limit.


There is the value limitation for the Max Cache Memory: from 16 MB to 16 GB.

Use the button to clear cache for all websites.

  • Smart Advice Suggestions

Manage Smart Advice

The advices are in the table:

To get an updated list of advices, click the Refresh advice button.

A not applied advice has the Review status, description of suggesting optimization and the Turn on site optimization button.

An applied advice will not disappear from the AccelerateWP interface, but it will be in the Applied state.

Object Cache Module error messages

No compatibility message

Causes of the "No compatibility" message are always Limitations. Each message has a small "how to", so you can try to fix them by yourself via cPanel or WordPress Admin interface.

Misconfiguration message

The misconfiguration message can appear in the following cases:

  • Redis process cannot be started for some period of time. Resolution: contact our support team for further investigation.
  • WordPress Redis Object Cache plugin is disabled via WordPress Admin Gui/Plugins. Resolution You can resolved it by yourself via the WordPress Admin Gui.
  • Version of PHP is incompatible or does not have all needed modules installed.

Post check issues

If you have some Post check issue after turning On the Object Cache module, you can leave them as disabled (in that case the engine reverts all changes). Or you can ignore the issue and continue working with the enabled Object Cache module.

General errors and warnings during activation plugin

If you get something like "Unexpected WordPress error" you can do the following:

Object Cache module Known Issues

  1. If you open the WordPress admin panel and find Redis Object cache plugin, open Settings for it, you can find the following:

Port: 6379

It is incorrect (will be fixed soon), it works via the file socket.

  1. If you get the following error:

Try again later. The cause of the problem is a DDoS protection for the WP Optimization suite which allows restart daemon only once in a minute.


How to measure the speed of the website?

You can measure the speed of your website before turning On the Object Cache module and after.

The popular tools:

Where the AccelerateWP tool log files are located?

Login via SSH, find in your home directory ~/.clwpos/main.log. Or you can open it using the control panel file manager.

I already use the WordPress Redis object cache plugin. Will the AccelerateWP be useful for me?

No, in the current version we suggest the same optimization as you already have. But we include other useful modules in the next versions, so let’s stay in touch.

I already use the WordPress Redis object cache PRO plugin. Will the AccelerateWP be useful for me?

No, in the current version we suggest the same optimization as you already have. But we include other useful modules in the next versions, so let’s stay in touch.