Pnut.co provides a url shortening service where the links do not expire. When a link is used, an intermediate page is shown so that the user can verify the destination url of the short link. If they are happy to proceed they can just click the link to view the original url created. There are many other url shortening services available. Below is a list of those that are currently active.
Link Management Platform. This is the market leading company which dominates the market for short link creations but it is not suited to everyone.
pnut.co was created to enable users to produce tiny small user friendly URLs (a pnut) and QR codes from long links.