So you want a URL shortening service in Corebird? Or any other client?
But let's investigate!
Ok, so by now you probably all know that a tweet can contain up to 140 characters and that's it. So, let's look at the behavior of Twitter's web interface regarding links.
Wow, that's a pretty long link, right? It is... counts ... 128 characters long! But it takes only (140 - 118) = 22 characters! Magic?
No. Twitter will automatically shorten all links. It uses its own t.co link shortener to make all links 22 or 23 characters long, depending on the protocol (http vs. https).
Now, if you post a tweet without using a link shortener, twitter automatically delivers the real url of the link to its clients, and makes it possible for them to show the real url (or a shortver version) to its users:
Usability-wise pretty cool. Using a link shortener totally destroys all of this. I don't care if it's goo.gl, bit.ly or tinyurl.com, it's all going to look like this:
Oh, great! Thanks for telling me that I'm about to click something totally cryptic and I have no idea what's behind that link.
Just do yourself and me a favor and say no to link shorteners.
 This is just the current value and can change over time.