Sure, Thanks for the feedback. I will implement uuid also. You can consider signup if you want the url to be private. For now I have made guest searches public (As there is no identity involved)
You could also add a checkbox to make the URL private, like what Qualys SSL Server Test does. I’m not sure people want to sign up on yet another website (what will you do with my data? Where is your privacy policy?) just to generate domain names.