Seems overly complicated if you just want to check where a link is going to since you have to activate a "preview" mode.
And I only became aware of it because it had been used by people spamming the contact form on my web site. It will be interesting to see whether those links are deactivated.
I'm using... It has lots of free tools. and very user-friendly. I didn't find any harmful content there. It provides a service for it registered users to view the main website before visiting the site/
Cutt.ly is an wonderful service completely for free. Custom url shortener option is very helpful in building own brand. Others charge at least $2.99 per month. I strongly recommend cutt.ly services to all.