In HTML, URLs (Uniform Resource Locators) are used to specify the location of web pages, images, and other resources on the internet. There are two types of URLs: absolute URLs and relative URLs.
Absolute URLs specify the complete web address of a resource, including the protocol (http or https), domain name, and path to the resource. For example, an absolute URL for the home page of Google would be:
Relative URLs, on the other hand, specify the location of a resource relative to the current web page. Relative URLs are often shorter and more convenient to use than absolute URLs, especially when linking to other pages within the same website. For example, a relative URL for the About page on a website might be:
In this example, the resource is located in the same directory as the current page, so the relative URL specifies only the file name.
Relative URLs can also include directory names to specify the location of the resource relative to the current page. For example, a relative URL for a page located in a subdirectory of the current page might be:
In general, it is a good practice to use relative URLs whenever possible, especially when linking to pages within the same website. Relative URLs make it easier to move or rename pages within a website without having to update all of the links on the site. However, there are cases where absolute URLs are necessary, such as when linking to resources on external websites or when using links in email campaigns or social media posts.