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Ask HN: Determine what website client was on

3 points by ge96 10y ago

I don't know why I'm not sure if you can do this. I just want to know for analytics purpose where a connecting client came from. Is that something you would know from say HTTP? I use PHP right now for backend. I can get IP/requested URL, I just for some reason assumed you can do this. I mean if you think about Google they are running a browser so this information is probably easy to get/makes sense to have. But I mean when you leave one server, how would another server know which server you were just connected to?

gt565k 10y ago
https://en.wikipedia.org/wiki/HTTP_referer https://en.wikipedia.org/wiki/HTTP_referer
- ge96 10y ago
  Thanks
timdavila 10y ago
In PHP, you're looking for $_SERVER['HTTP_REFERER']
- ge96 10y ago
  Nice! I saw this in a StackOverflow post, it's odd that it would work that way don't you think? (probably not) but I think say you are A, and you connected to B (Facebook) and you then connect to C (YouTube), why would you not see A instead of seeing B at C? Anyway thanks
joshyi 10y ago
Use something like https://goaccess.io https://goaccess.io