Hacker News Reader

Mixpanel should handle that. I would also look into using Optimizely if you plan on testing a lot.

I meant, the actual code. Right now, I'm modifying the source directly because nobody is on the site. And I just refresh the page to see the changes.

I'm guessing I should put a copy of my code somewhere else , test there, and then upload the changes when I'm donE?

I see now. Yeah I am not sure about that one myself.