What is status and how does it work

Answer 1

I guess you're talking about window.status?
Here's an example code
<a href="http://www.example.com/tracking.php?url=http://www.destination.xyz" onmouseover="window.status = 'http://www.destination.xyz' return true;" onmouseout="window.status = '' return true;">Click me now</a>
It manipulates the status bar shown to the user in the browser. Even though you're redirected to example.com, you're seeing the destination URL instead in the browser's status bar.
Since this property is confusing and probably dangerous, modern browser versions deactivated this feature, so you have to manually activate it in the configuration.

Answer 2

thank you!