The script includes a dynamic parameter feature where it will automatically forward parameters to the final url. For example if you shorten https://gempixel.com and you get https://short.com/AXy12Z, you can assign parameters like https://short.com/AXy12Z?affiliateid=123 and the it will be forwarded to https://gempixel.com as https://gempixel.com?affiliateid=123