Improving WordPress Performance
There is a downside to WordPress: that it can be painfully slow when a site gets busy. To combat this, we strongly recommend that you install a plugin called WP Super Cache. When using WP Super Cache, WordPress pages are cached and stored in a static file for serving future requests directly from the file rather than building the page again from the content database. This hugely improves the responsiveness of the website.
Installing WP Super Cache
WordPress comes with a handy plugin installation tool, which allows you to search their official repository and install new plugins, straight from the WordPress dashboard. Hover your mouse cursor over the Plugins entry in the menu on the left-hand side of the dashboard, and choose the 'Add Plugin' option. Type 'wp super cache' in the search field and then click on the 'Search Plugins' button. The WP Super Cache plugin should be among the top entries. Click on the 'Install now' link to install the plugin. Click 'OK' when asked if you are sure you want to install the plugin. Once the installation process has finished, click on the 'Activate Plugin' link.
You should already be in the settings menu, so from here, you can choose the 'WP Super Cache' entry. Change the Caching option from 'Caching Off' to 'Caching On' and then click on the 'Update Status' button. WP Super Cache should now be up and running.
To verify that WP Super Cache is working correctly, use the Cache Tester, a little lower on the page. Click the Test Cache button, which will check that two requests for the same page, made a couple of seconds apart, are derived from the same cached file. If that succeeds, you will see the result that both timestamps match displayed, and you can be assured that WP Super Cache is working as it should.
Object Caching
For security reasons, object caching is not available on shared hosting.