Bitly is a convenient tool for creating short URLs to share in location of long URLs. Some people utilize Bitly to try to mask URLs to try to get you to click on dubious links.
The technique is to merely include a “+” to the end of any Bitly URL. When you include the “+” the URL will redirect to Bitly instead of to whatever the initial URL was. That will then show you the Bitly page on which the reduced URL is hosted and will show you what the original link was..

Ive created a couple of brief video presentations 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.

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 exact same link however add “+” to the end of it so it checks out like this.
bit.ly/ 2ZZnuP2+ you will go to the Bitly page where I reduced my initial URL.