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Configuring WP Rocket with Shoptimizer

This guide will help you setting up the WP Rocket plugin for your sites using Shoptimizer. After completing these steps you should be able to achieve an excellent PageSpeed score.

If you don’t use WP Rocket we have an alternative Shoptimizer speed guide available which uses only free plugins.

Once you’ve installed and activated WP Rocket follow these steps. Your setup should resemble exactly the instructions and screenshots below.

Step 1: Cache

Go to Settings > WP Rocket and from the left menu click Cache:

Ensure that only Enable caching for mobile devices is active.

Cache section

Step 2: File optimization

Click on File Optimization tab.

File optimization

Under the CSS Files heading:

a) Enable Minify CSS files
b) Enable Optimize CSS delivery

File optimization: CSS

Under CSS safelist:

When Optimized CSS delivery is enabled you will need to exclude the following, in order for the product gallery to work correctly:


Under JavaScript Files:

a) Enable Load JavaScript deferred and exclude:


b) Enable Delay JavaScript execution and leave the rest as is.

JS optimization

Step 3: Media

Click on the Media tab. Ensure that these settings are both enabled:

a) Enable for images
b) Add missing image dimensions

Inside Excluded images or iframes add: custom-logo

Media rules

Step 4: Advanced Rules

The final configuration step will be whitelisting pages which should be excluded from being cached – such as the cart, checkout and wishlist. Go to Advanced Rules tab and add those urls.

Note that these URLs may differ on your own site (e.g. if your store language isn’t English) so double-check them.


Advanced rules

Step 5: Test with PageSpeed

When you have completed these steps – open your site in an incognito browser to first flush the cache. And then test it in Google PageSpeed.

Our scores after the above configuration setup was applied on a “basic” web host were as follows.

WP Rocket results

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