Abstract
As the attacks on the website and domain names are increasing day by day it becomes very important for various verticals in the country to be secured against the deadly attacks which can hamper the operations of the web traffic in the country and its verticals. XSS is one such attack which is more frequently tried on the websites to gain information and data which is relevant to the attacker from the website. XSS is also called cross-site scripting attack where the attacker writes a script and injects the script into the domain, which he wants to attack and gain information from. In this research article we are focusing on XSS attacks and how to use software-testing tools and regular expressions to check if the websites in different vertical are vulnerable so that they can be taken care off by the developers of those websites. Hence designing an application which the users can use without any attack possible.