Redirect of my web page what about tracking code in google analytics

Question

I have put the tracking code of Google analytics in my website example.com

So the tracking code was ga('create', 'UA-xxxxxxxxx', 'example.com');

After that I redirect my website as home.com

So I have to change my tracking code as ga('create', 'UA-xxxxxxxxx', 'home.com');

My Google analytics account refers as ga('create', 'UA-xxxxxxxxx', 'auto');

what should i put?