Search Engine Optimization is an ongoing process where you tweak and refine your website to get a better ranking.  For this purpose you need to monitor your website performance.  You can use Google Analytics to measure the performance of web pages. It is easy to install Google Analytics.  Go to www.google.com/analytics and register using your google account.  Then enter the URL of the website you would like to track.  Google will provide the tracking code.  Add this code to your web pages.

Analytics runs in the background, gathering information of your website visitors.  It is transparent to your website visitors.  Google does a great job at gathering your website visitor statistics.  It records key phrases used in search to get to your website, how visitors are finding your website, how long are they staying on your web pages, what devices are they using to get to your web pages, which is the landing webpage, which is the exiting point, how long are the visitors staying on your site, what devices and network capabilities are using, which country are they coming from and much more…

By selecting Content > Overview > Site overlay, you will be able to visualize how users navigate through your site.

By selecting Traffic sources > Referring sites, you can see which sites are generating traffic for you.

By selecting Visitors/Overview you can see how many people visited your site.  How many Absolute unique visitors you had on your site, page views, average page views, time on site, bounce rate and new visits.

Selecting Visitors/Map Overlay will show you from which countries the visitors are coming to your site.

Selecting Visitors/New vs Returning will show you how many new visitors you got and how many returning visitors.

The languages menu will show you the languages they used.

Visitor Trending gives you further information about visitors.  Other features are browser capabilities, network properties, mobile devices, etc. that give you further information regarding your visitors.

You can create or email custom reports.

Google Analytics can help you tune your website and maintain your position on the top of the search engines.