Any web developer in the process of creating a site needs to check its performance. It is most convenient to do this on the local web server raised on your computer. The advantages of this method are that there are no restrictions on the size of the site, nor on the use of processor time or server RAM, and most importantly, that any file is saved instantly; you immediately see the result in your browser. Mac OS X already includes an Apache server. But what about dynamic sites, because to raise a site using the built-in MySQL server, you must be able to configure it through the Terminal, and not every user will be able to. In this case, when there is not enough knowledge on working with the Terminal, and also when you just do not want to deal with all this.