Source code refers to an uncompiled text file written according to a programming language specification. Source code (also called source program) refers to a series of human-readable computer language instructions. In modern programming languages, source code can appear in the form of books or tapes, but the most commonly used format is text files, which are usually used to compile computer programs. The ultimate goal of computer source code is to translate human-readable texts into binary instructions that can be executed by computers. This process is called compilation and is completed by the compiler.

Website source code, we can understand it as source code. Take the web page we have seen so far as an example. In fact, it consists of a lot of source code, which has been translated into what we see through our IE (Microsoft Internet Explorer) browser (or server).

There are two kinds of website source code, one is dynamic source code such as ASP, PHP, JSP, NET, CGI, and static source code such as HTML.