What is base url?
In web development, design applications can define a base URL or location, which helps convert relative web urls on the specific page to absolute web urls. The HTML element
The URL in the address bar of a website's home page is its base URL. In other words, the common prefix found while navigating within a particular website is called the base URL. A base URL can be selected from the list of available URLs using the URL's general properties page. A blank base URL is also allowed and is a useful method for Java application developers using HelpIndex as part of their application's help system.
There are several advantages associated with the base URL. Using a base URL helps make things easier for designers by reducing the need to enter the full URL for every page referenced within a website. A relative base URL helps index on the website server or on the working local copy of the website. However, more than one base URL is possible for a given index file.