With Shorten.REST, you can take a long link (aka a destination URL) like this:
https://try.powermapper.com/demo/ViewScan/459646de-cf2c-4f04-8645-20e19e271885
And shorten it to a link like this one:
https://short.fyi/2fc5/lqMGseC
With every Shorten.REST plan, you can replace short.fyi with your own custom domain. The vanity URL (currently a random string of letters and numbers) into your own custom vanity URL.
This is done so that you don’t have to waste character space on texts, social media, and other modes of online sharing. Your short links are easier to share, and your custom domains help to build your brand, your credibility, and your trustworthiness.