Your Spotify artist URL is where your artist page lives on Spotify - a fan can use it to find you and see all of your releases, upcoming shows, and merch. It can also be used to extract valuable data on how your fanbase is growing.
Open Spotify
Search for your name
Click on your profile
Click the three dots below your name
Select Share
Click Copy link to artist
Your URL should now be copied to your clipboard, allowing you to paste it. It'll look something like this: https://open.spotify.com/artist...