Using a Content Delivery Network (CDN) can be beneficial for just about any type of site; however, you are going to see greater improvements for media heavy sites, such as photo blogs.
The goal of a CDN is to distribute static media to users who are visiting your website. One benefit of using a CDN is the fact that they use a geographical DNS resolution to make sure that your users hit a CDN server closest to their geographic location. By doing this, you can deliver the media content quicker to your users’ browser.
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There are a couple of WordPress plugins that can connect the media on your site to Rackspace Cloud Files and help leverage the CDN. One of those is CDN Tools – as you upload an image or media file to your site, the plugin will store that file automatically on your Rackspace Cloud Files account so you can benefit from the CDN. Another plugin that supports a large variety of CDNs in addition to Rackspace Cloud Files is W3 Total Cache.
With only a few clicks, you can leverage these plugins to better serve media content to your end users. Not only will they get the content faster, your server will not be over taxed by rendering media files and can focus on delivering the text content of your site.
Previously, Matt talked about the importance of caching your WordPress site and check out the following post where he explains how to backup both the file system and database of your WordPress Site. Learn more about how Rackspace can help you with hosting your WordPress site.