Google Webmaster Tools is a resource to determine the visibility of your pages on Google. It illustrates you who of our search queries make traffic to your site and lets you see where your site is included in the top search results. You will even be able to recognize your top content and view the words that other sites use to link to it.

Google Analytics gives further insight on how people land and navigate on your site, regardless of whether they turn up through Google search, pay-per-click ads, or other means. You can see which geographical region people come from, view your top landing page, and evaluate the effectiveness of all your ads, e-mail newsletters, affiliate campaigns, referrals, and keywords on Google and other search engines.

Google Website Optimizer then allows you to act on the information you have gathered about your site and make real development. After identifying your high-traffic but low-converting pages, you can test different mixture of content to conclude which one most yields the result you are looking for. More information click here