Hi,
I have just completed the article below. It describes how you can create your own personalized short links using an rPi. instead of Bitly links, for example, which look like "http://bit.ly/1Jua4qn", you can create short links under your own domain, like "http://jrt.dtdns.net/b", using the Pi to do the redirection. The short links can be sent in texts, messages, whatever. Includes a script for automation.
http://unixetc.co.uk/2017/10/22/set-up- ... pberry-pi/
Jim