If you aren't so sure about where one will take you, you can verify a link's destination before clicking on it. To check where a Bitly link will take you, add a plus symbol ("+") at the end of the URL.
For example, to check bit.ly/Wn2Xdz, enter bit.ly/Wn2Xdz+ into your browser. You'll be sent to a preview page for the link. Here's what it looks like:
If you feel it's safe, you can then click through to the destination page or copy the shortlink.
Learn more about what Bitly does to keep users safe and secure.