<em>Recommended:</em> If you already have a content delivery network (<acronym title="Content Delivery Network">CDN</acronym>) provider, proceed to the "<a href="admin.php?page=w3tc_cdn">Content Delivery Network</a>" tab and populate the fields and set your preferences. If you do not use the Media Library, you will need to import your images etc into the default locations. Use the Media Library Import Tool on the "Content Delivery Network" tab to perform this task. If you do not have a <acronym title="Content Delivery Network">CDN</acronym> provider, you can still improve your site's performance using the "Self-hosted" method. On your own server, create a subdomain and matching <acronym title="Domain Name System">DNS</acronym> Zone record; e.g. static.domain.com and configure <acronym title="File Transfer Protocol">FTP</acronym> options on the "Content Delivery Network" tab accordingly. Be sure to <acronym title="File Transfer Protocol">FTP</acronym> upload the appropriate files, using the available upload buttons.