Definition: The `/` symbol in a URL often refers to a web server, where files are downloaded from the Internet by your browser, such as HTML pages, images, scripts or JavaScript code. In other words, `/webdb.php` could refer to a PHP file, which is the scripting language used by web servers and their web applications. This file contains data that can be accessed through HTTP requests sent by the user's browser, allowing users to view, edit or download content from the server.