Clickjacking attacks, also known as User Interface Redness attack or UI Redness, is a method use by hackers to trick web users to vulnerability reveal their personal information. The hacker hides the actual UI where the victim is supposed to click to but end up at a page where the hacker wants you to be.
How to check?
To check whether a site is vulnerable to clickjacking or not, you can visit https://bugstrix.com/tools/ where you can test any site for free.
We tested mailcheck.co for clickjacking. The mailcheck.co team responded accordingly. Though there was no reward but still they responded greatly. After mutual agreement we decided to publish it on our blogs. As a compensation we have been registered in there hall of fame.
We would recommend to work with mailcheck.co.