If you answered, "How the heck should I know?!", you're not alone. But I'm going to show you how to check.
Bottom line, if you're website isn't verified with Google, you're certainly not getting the "Google juice" (better known as SEO results) that you should.
So here's what you do:
1.) First of all, sign in or sign up for a Google account on Google.com...it’s free.
2.) Then, go to your settings where you’ll find Webmaster Tools.
4.) After entering the URL (complete with the http://), you will be given a code. Enter that code on the home page of your website and you’re all set!
It’s not a lot of effort and it will help improve your SEO results. After all, Google doesn’t have to search for you anymore...you sent Google a message telling them exactly where you are using that code :-)