Google analytics is one of the best tools which are available to monitor websites visitors. Google Analytics is a free tool which can be used with Google account. But now you can also monitor website speed and load time. Website speed is an important factor for SEO and Google also give this importance in search engine ranking. So this tool can help users see the over all performance of the website.
To see the speed of web pages of your website, Login to "Google Analytics" account. Click on "Content" at the left side menu and then click on "Site Search". Now you will see the average load time of website with individual page load time of every page.
For advance tracking, GO to the "Advance Segments" at the top of the website and select the advance option.