Website addresses or URLs are complicated things that are actually made up of many parts.
This is a URL with all it’s different bits colour coded:
https://www.client.com/shop/offer?source=display&campaign=summer#section2
Vanity URLs – An Ugly Problem
Vanity URLs, also called “friendly URLs” or “FURLs” (pronounced to rhyme with Earl) are short catchy version of web page addresses designed to be easier to remember and type in manually.
e.g. “go to client.com/product”