Zork.info is a privately owned and operated URL shortener. It is used to shorten a long URL to a short URL that works better with some web browsers and smart phones.
For example this is a google maps link to Capital Hill Denver Colorado,
https://www.google.com/maps/place/Capitol+Hill,+Denver,+CO/@39.7337028,-104.9889907,15z/data=!3m1!4b1!4m5!3m4!1s0x876c7ed0cb0a869b:0xe6d53ad2d3499f53!8m2!3d39.7337222!4d-104.979898?hl=en
This is the shortened link for the exact same place http://zork.info/4