Google Analytics is a measurement service that provides statistics and guidance for search engine optimization (SEO) and marketing purposes.
We need this to see how many people are visiting your website and improve the users experience.
WHY DO YOU NEED THIS?
Measuring your website traffic allows you to see growth, find out if your keywords that are doing well, find out where people are coming from and much more.
HOW CAN THIS BENEFIT YOU?
Knowing what is bringing you traffic can help your marketing a lot.
Example: You may pay for traffic to get extra exposure. You can measure how many people see a certain page. You need to know this for effective spending on marketing.
Example 2: Maybe you did a post of page a long time ago and suddenly it gets lot’s of traffic. By knowing this you can go back to the page and design it for maximum effectiveness for sales of growth.
Analytics setup. Integration into website. Requires coding administration setup and webmaster tools setup.
Also see google webmaster tools