Introduction
The chapter demonstrates about the HTML URL which is also known as the another word of the web address. following are the concepts are covered in this chapter.
- URL
- URL Encoding
Description
URL is known as the Uniform Resource Locator which is used to address a document in a web. URL look like http://www.splessons.com/. Browsers request the pages from web servers by using a URLs. The syntax of the web address is as shown below.
[html]
scheme://prefix.domain:port/path/filename
[/html]
In the above code
The listed below demonstrates some common schemes.
- schema Defines the type of internet service.
- prefix Defines the domain prefix.
- port Define the port number.
- path Define the path at the server.
- filename Defines the name of the document.
- http (Hyper Text Transfer Protocol) Commonly used and are not encrypted.
- https (Secure HyperText Transfer Protocol) Used for the secure web pages and are encrypted.
- file Defines a file on a computer.
- ftp (File Transfer Protocol) Defines the Downloading or uploading files.
Description
In order to send the URLs over the internet user need to use the
American Standard Code for Information Interchange (ASCII) character-set. If URLs contains any characters outside the ASCII set then the URL has to be converted. URL converts non-ASCII characters into a format which can transformed over the internet and URL replace the non-ASCII characters with "%" followed by hexadecimal. URLs should not contain any spaces and URL encoding normally replace a space with plus(+) or %20.
Key Points
- URL is the address of a web document.
- URL replace the spaces with + symbols.