People use URL shortens for a variety of reasons, some they do this simply because typing in an incredibly long URL would be quite time consuming especially when it contains special characters, some light to hide their affiliate links and some unfortunately use it to hide the suspicious link that is posted it would otherwise be reported as being spam, scam or deceptive.
there are tons of URL shorteners and this page will show you how you can see the target URL.
For bit.ly and bitly.com enter i.e. bit.ly/abc+ add a plus sign at the end of the URL i.e. +
To see the target URL for kve.so, enter the url i.e. kve.so/aBc1 then at the end just add a forward slash and a plus sign at the end. I.e. kve.so/aBc1/+, the same applies for wee.so
https://wqyu.com