The Web site builder provides the following SEO tools:
In addition, Page metadata can edited by going to the General Tab, mousing over the name of a page. On mouseover, Actions will appear. Choose Properties and edit meta descrition and meta keywords.
There's also an Analytics tab, that can fetch your Google Analytics data. Press the "Fetch Analytics data" button and grant access to your google analytics account. After data is fetched you can select the site from the dropdown list and view a summary of the analytics details.