Awesome article by Dailyblogtips about the Security of Short links. They even mention Sucuri:
If you want to be safe, therefore, only click on shortened links if you trust who created them. If you must or want click on a link but don’t know if it is legitimate, use a URL unshortening tool. There is one over at Sucuri.net that will reveal the real URL behind the link and make checks with Google and with SiteAdvisor to make sure the website is safe to be visited.