Writing the necessary source code to create a website. At the very least, it refers to writing the HTML pages. However, Web pages also contain JavaScript, and any website that provides access to databases or any processing for the user requires additional programs that run in the Web server. Web server processing is programmed in Java, PHP, Perl and other languages. See
JavaScript,
Java,
PHP,
Perl,
Web authoring software,
responsive Web design and
application server.