We need to install the W3 Total Cache plugin and Query Monitor before executing this recipe. Take the following steps to install and activate the plugins:

1. Log in to the Dashboard as an administrator.
2. Click the Plugins | Add New button.
3. Search W3 Total Cache in the Search plugins field.
4. Once the plugins are listed, click the Install Now button.
5. Click the Activate button to activate the plugin.

Use the same process to install and activate the Query Monitor plugin. Now, you are ready to start this recipe.