One of the problems of Bitly shortened URL inks or others created by Google or TinyUrl, is that you really don’t know what site they are sending you to.
One way I have found around this is with the Google Extension Unshorten.link. When you click on the shortened link, it takes you to a page which shows you the real URL link and then you can decide if it is safe to go to. One of the problems I have had with this is that when I want to create my own link, this app won’t allow that and I have to disable the app to create the link and then turn it back on.
Brian Krebs talks about this topic on one of his latest postings.
Here’s what the app looks like on the Chrome Store.
Here’s the link to the Unshorten.it website.