Yes, if you use the TRACK URL button when composing your message, the link entered in here will be shortened down to just 20 characters. On sending, we generate a unique link for every recipient so we can see who's clicked on the link too.
STEP 1: Head to the SEND tab and compose your message as normal
STEP 2: When you're ready to enter your URL link in the message, hit the TRACK URL button on the left hand side
STEP 3: Enter your URL link in the box and hit INSERT URL
STEP 4: Your link will now have some code around it - make sure that you have a space before and after the link
You can track your clicks in MESSAGES > SENT MESSAGES > VIEW > CLICKS