For those wondering what the .glitch.me subdomain is for is because when you create a Glitch project such as a Website/Node etc is for an automatic domain. It’s so you don’t have to pay for one, although there is a way to link a bougthen one if you’re wanting one such as .com or .net etc in the bottom left.
Question: Is the subdomain an IP Grabber or Doxxing Link?
Answer: No. For no reason will Glitch want users to dox or grab any IPs - it is against guidelines.
Question: Can I use the subdomain if I am not using Glitch.com itself?
Answer: No. In order to use a .glitch.me subdomain you must have a PROJECT on Glitch.
Question: How can I setup a different domain?
Answer: [Tutorial] Get your project on a custom domain! - Full steps how to setup.
Hope this helped a few questions revolving around the Glitch subdomain and how to add a new one!