<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?ndiyo sababu unahitaji kujua kuhusu cdn nini, jinsi inavyofanya kazi, na jinsi inaweza kuboresha seo ya tovuti yako.  <response>: thats why you need to know about what a cdn is, how it works, and how it can improve your sites seo. 