Is it possible to know whether it is the first time that someone visits my discourse?
If you click the admin button on their profile it you can find out when someone created their account, and when they last logged in, if that helps.
Or do you mean whether or not someone has used a different account in the past?
Some more information about what you’re trying to do might help.
Thanks for your reply, but I mean the first time someone visit discourse, not when they created their accounts or logged in. It has nothing to do with account, because users tend to have not created their accounts at the first time they visit discourse.
You’d need to hook up Google Analytics or a similar service for that. You can do so by entering the relevant google key in your site settings.
Thanks. I will try it. I just wish to show a different UI for the visitor who come at their first time.