Bitly is a practical tool for creating short URLs to share in place of long URLs. Some people utilize Bitly to try to mask URLs to attempt to get you to click on dubious links.
The technique is to merely add a “+” to the end of any Bitly URL. When you add the “+” the URL will redirect to Bitly rather of to whatever the original URL was. That will then reveal you the Bitly page on which the shortened URL is hosted and will show you what the original link was..

You can attempt this with my Bitly link of.
bit.ly/ 2ZZnuP2 which will take you to the registration page for my Practical Ed Tech Newsletter (.
https://practicaledtech.com/weekly-newsletter/). If you attempt the very same link but add “+” to the end of it so it checks out like this.
bit.ly/ 2ZZnuP2+ you will go to the Bitly page where I shortened my initial URL.

Ive developed a couple of short video demonstrations of how this technique works. This is the Instagram video that I made about it. This is the YouTube video that I made about it.