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19/01/2014 Categories: HTML. No Comments on Uniform Resource Locator

The resources provided by the web servers are identified through Uniform Resource Locators (URLs). The format of an URL is shown below:

url-structure

Above URL is an example for identifying resources through HTTP protocol which is generally used to request and send XHTML (eXtensible HTML) pages. The default port for HTTP is 80. If the web server uses any other port, it should be appended at the end of the domain name.

Like http, we have file scheme which denotes that the resource is available on the local host or system. If we want to access a file on the local host it is sufficient to write file:///path_to_file.

URLs are of two types. First one is absolute URL, where the entire path including the domain name is specified. Second one is relative URL, where the domain name is skipped and the rest of the path is specified. For example, the domain name is www.xyz.com and the document root contains the folder images. The images folder contains a file named sun.jpg.

Considering that the image file (sun.jpg) is being referenced from another file in the document root, the absolute URL for sun.jpg will be http://www.xyz.com/images/sun.jpg and the relative URL will be images/sun.jpg.

Suryateja Pericherla

Suryateja Pericherla

Hello, I am Suryateja Pericherla working as an Asst. Professor in CSE department at Vishnu Institute of Technology. I write articles to share my knowledge and make people knowledgeable regarding certain topics.
Suryateja Pericherla

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