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Caching creates and saves a static version or snapshot of your website so it doesn't have to go through the WordPress database to generate and serve pages to your visitors. This allows your website to load much faster.

The way WordPress works is it stores posts, pages, and other data in databases. If your site doesn't have caching, when someone visits your site and requests to go to a specific page WordPress will go to its database to retrieve the correct data to display to your visitor. This process is complex and takes time. If you have several to thousands of visitors accessing your site at the same time this can put a load on your server and slow down your page speed. With WordPress caching, it will instead serve a snapshot “cached” version of your page so it doesn't have to process each request, which makes everything much faster.

We recommend that most WordPress sites use caching for enhanced page speed and performance.

DreamPress is a managed hosting service built by DreamHost specially for WordPress. DreamPress is perfect for businesses and WordPress users that need guaranteed site performance and security without the hassle of doing it all on their own. With DreamPress, we manage the technical aspects of WordPress for you, such as installation, caching, uptime, security, automatic backups and updates — all intended to make managing WordPress a breeze. It also includes premium support and added features not included in traditional hosting plans.

Since DreamPress already includes built-in caching, installing additional caching plugins is not necessary. DreamPress caching is finely-tuned to take care of all your caching needs, so one less thing for you to worry about!

If you make changes to your site you can easily clear or purge your cache to ensure visitors are always seeing the latest version of your site. With just one click, you can select which part of a page or post you'd like to purge.

Our in-house WordPress experts built a plugin called Proxy Cache Purge that can scan any page on your site to ensure DreamPress caching is working on each of them.