The http://redtrck1.com/click (or http://your_domain_link.com/click)link is called your click tracking link. You can use this single URL for all your landing pages. Redtrack will know where to redirect a user by reading a cookie that was set during the initial redirect to a landing page. In the rare case when a user disabled cookies, Redtrack also passes the same information from the campaign URL to lander URL and reads it from the referrer during the click redirect.
Once you have your landing page ready and uploaded to your hosting service, you can add it to Redtrack.
And add landing with title