Say you are sitting inside the office cubicle and get an email or a twitter alert from an old college friend that goes something like this:
"Hey! This website is cool, check it out – http://tinyurl.com/161."
You are tempted to click the link but the problem is that you have no clue if that TinyURL link will transport you to some safe-for-work website or not.
Now if you don’t want to get into an embarrassing situation but still would like to check out websites that are redirected through TinyURL, here’s a simple trick:
Go to tinyurl.com and enable the preview feature. This will set a cookie in your browser that will prevent TinyURL from automatically redirected you to the main site – it will only display the underlying web address but won’t take you there.
The other option is that you add the word "preview" to the main URL itself (tinyurl.com/161 => preview.tinyurl.com/161) – use this if you want to check for safe URLs occasionally else the previous trick is better.
Related: TinyURL for Sharing Adult NSFW Links