Which raises the question of the purpose of link shorteners anyway.
They are usually so obscure and jumbled that reading them out loud to someone would be slow and awkward ( "that's goo dot gl, no e" ). So what is the use-case?
They're still shorter, and less likely to line-wrap and break older clients. They also help to obfuscate certain tracking info and/or protect them from tampering.
Also you can set a custom shortname in almost all of them, if it's available.
They are usually so obscure and jumbled that reading them out loud to someone would be slow and awkward ( "that's goo dot gl, no e" ). So what is the use-case?