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C# and .Net Core 3.1:  Make a Custom URL Shortener Since a Random URL needs to be random and the intent is to generate short URLs that do not span more than 7 - 15 characters, the real thing is to make these short URLs random in real life too and not just a string that is used in the URLs Here is a simple clean approach to develop custom solutions Prerequisite:  Following are used in the demo.  VS CODE/VISUAL STUDIO 2019 or any Create one .Net Core Console Applications Install-Package Microsoft.AspNetCore -Version 2.2.0 Add a class file named ShortLink.cs and put this code: here we are creating two extension methods. public   static   class   ShortLink {      public   static   string   GetUrlChunk ( this   long   key ) =>            WebEncoders . Base64UrlEncode ( BitConverter . GetBytes ( key ));      public   static   long   GetK...