About caching With todays emphasis on speed being important to people when browsing websites, it can often be of benefit to add caching services to your site once your site increases in size. IPS4 is no exception to this, and we have therefore added the ability to use the redis caching method, which may be available to you on your hosting environment. Before setting up any caching, we advise you consult with your hosting company to see which is best suited to your particular environment .