Query string is information send to the server appended to the end of a page URL which means that query string is way to transfer information from one page to another through the URL. Query string is attached to the URL With.

Followings are Advantages of Query String:-

• All Browsers Support  Query strings
• Easy to use.
• No extra effort is needed to code.
• No server and resources and required.
• Query string is contained in the HTTP request for a specific URL.

Followings are Limitations of Query String:-

• All the attributes and values are visible to the end user. Therefore, they are not secure. 
• There is a limit to URL length of 255 characters.