Alternative PHP Cache, or APC, is a module for Apache web servers which is used to cache the output code of script applications. It is very effective for scripts with large source code and could boost such a website up to 3 times. PHP websites are dynamic and every time a user accesses some webpage, the script hooks up to a database in order to get some content, and then the code is parsed and compiled before it is displayed to the visitor. If the output code doesn't change however, that is the case with sites that display the very same content at all times, such actions trigger unnecessary reading and writing. What APC does is that it caches the already compiled program code and delivers it every time visitors browse a website, so the database doesn't have to be accessed and the program code doesn't have to be parsed and compiled again and again, which consequently minimizes the Internet site loading time. The module could be very efficient for informational Internet sites, blogs, portfolios, etc.