Most bloggers install Google Analytics (which is free), and watch to see where visits originate, which sources drive quality traffic and what others might be saying about you and your content when they link over.

Google analytic is the best tool to know how the website plays on the web. It gives ways to find out how your visitors locate your website,  identify which pages and links your visitors click the most, Visitor segmentation, and to fine tune your website.

Yes dear.
Google analytic is best tool ever.

I love GA  (Google Analytic) for ever

Well some person provided really great things here.

It is necessary to see the visits for your blog.