How to Configure & Setup WP Super Cache Plugin in WordPress

How to Configure & Setup WP Super Cache Plugin in WordPress

Website Loading Speed issues can reduce the traffic drastically. Not only this, it is also bad for SEO, as Search Engines do not give good rankings to slow websites. Many of the WordPress users hire developers to solve this slow loading speed, but hiring a professional is a very costly affair. I want to tell you that you can solve this problem by your own.

WP Super Cache Plugins provides you the solution. It uses the features of WordPress Cache and improves the website speed drastically. The best thing about this plugin is that it is completely free to use. In this tutorial I will explain you how to configure and setup this plugin in your WordPress.

First thing to do is to install and activate it in your website – download it now, (tutorial – How to Install Plugins in WordPress).

Configure WP Super Cache

After activating the plugin go to Settings > WP Super cache section. Enable the Caching by selecting the option called ‘Caching On’ and then click the ‘Update Status’ button.

turning caching on in WP super cache

Next click on the Test Cache button to check if the caching is working or not. It will show the message The timestamps on both pages match!, this means cache is working.

WP Super Cache Advanced Settings

Next, go to the Advanced tab where you can do many more cache settings. I will discuss these options one by one –


Make sure to check in the option called Cache hits to this website for quick access. (Recommended). If you are using Shared hosting then select the radio button called Use mod_rewrite to serve cache files., for dedicated hosting select Use PHP to serve cache files. (Recommended).

Next click the Update Status button.

wp super cache settings
Note – on selection the mod_rewrite option and clicking the Update Status button, will show a notification that mod_rewrite rules must be updated. Simply click the ‘Update Mod_Rewrite Rules’ button to update these rules. This section will turn green once the rules get updated.


In Miscellaneous options make sure to select these 2 options given below. These are ideal for most of the websites:

  • 1. Compress pages so they’re served more quickly to visitors. (Recommended)
  • 2. Cache rebuild. Serve a supercache file to anonymous users while a new file is being generated. (Recommended)
    wp super cache miscellaneous settings


Make sure to check in the option called Mobile device support.

Cache Location

You can change the location of Cache file storage from default setting, which is wp-content/cache/, to any other if you need.

Expiry Time & Garbage Collection

From here you can set the life time of cache pages and even set a scheduled time to run Garbage collector. The work of the Garbage collector is to delete the cache files from your web server.

It is important to run Garbage collector otherwise your server disk space will become full. For most of the websites the common settings would be –

  • Cache Timeout – 3600 seconds
  • Scheduler – Clock 6:00 HH:MM. Interval: Twice Daily
  • Notification Emails – check “Email me when the garbage collection runs”.

Note – For high traffic websites I recommend to schedule the Garbage collector to run twice daily.

wp super cache garbage collection settings

Below are the settings which are not so important, so let us discuss them quickly.

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Accepted Filenames & Rejected URIs

Set the pages which you do not want to be cached.

Rejected User Agents

Prevent WP Super Cache from caching bots, spiders, and crawlers’ requests

Lock Down

Order WP Super Cache not to recreate the cache of a post or page, when new comments are put on them. I suggest enabling Lock Down if your website is a high traffic one.

Directly Cached Files

If a page or post in your website is receiving a very high traffic then you can put its URL here. This will help WP Super Cache to manage its Caching much more effectively.

Fix Configuration

Restores Advanced WP Super Cache setting to default.

WP Super Cache CDN Settings

If you are using a CDN for your website then these settings can be used, else just leave this part.

Adding a CDN to your website will also speed it up and I advise you to use CDN.

If you don’t know how CDN works then have a look on What is CDN – Content Delivery Network.

The main idea here is to serve the static content of your website like images, JS & CSS files directly from CDN. What WP Super Cache does here is that it applies a rule which replaces all the links to these static files, given in all your WordPress pages and post, to your website’s CNAME (these CNAME are pointing to the CDN servers).

If you already have a CDN active in your website then check the option Enable CDN Support. Then in the Include directories, you add the directory names (separated by comma).

In Exclude if substring, add strings separated by comma, which when matched in the URL will lead WP Super Cache to exclude the URL from caching.

In Additional CNAMES, enter the CNAME of your domain. Example are like http://cdn1., http://cdn2.,

These CNAME are the URLs of your website which are pointing to the CDN servers, so the static files will load directly from the CDN servers and not from your hosting servers anymore. This gives a big boost to the website speed.

Lastly, check Skip https URLs to avoid “mixed content errors” and then save these changes.

wp super cache CDN settings

WP Super Cache Preload Settings

A static website loads quickly then a dynamic website. The main reason is that there is no database request in static websites. Preload employs the same concept of caching and caches an entire website. So every time a static version of your website is served to the users.

Click on Preload tab then check in these 2 options –

  • 1. Preload mode (garbage collection only on legacy cache files. Recommended.)
  • 2. Preload tags, categories and other taxonomies.

I advise not to use Preload because it is only good for speed, and for everything else it will hamper your SEO rankings.

wp super cache preload settings

I hope you like WP Super Cache Plugin and will use it in your WordPress websites. There is also another WordPress Cache Plugin and is its main rival, it is named W3 Total Cache.

For any question on it please use our comments section below.

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