To begin tracking of visitors activity on your website into Nurture, you need to embed the script on every web-page that needs to be tracked. By using tracking Code you will track all the details of the visitors or contacts activity like click link, browse page etc. Also Tracking Code loads Nurture's Engage and Convert Tools on your web-pages and keeps track of the same. You can see all these activities under Website Visitors in Contacts tab of your Nurture Account.