To save on space, short names are used for values in several of the real-time API calls.  This list shows you what they stand for.

• a - ip : IP of event source.
  

• b - pagetimer : Time to finish loading the dom.
  

• c - time spent : Number of seconds on page.
  

• d - domain : The supplied domain name.
  

• e - new page : First time visitor of the page.
  

• f - utc: Timestamp of event.
  

• g - uid : The chartbeat account.
  

• h - host : Hostname of site from location.host.
  

• i - title : Page title.
  

• j - decay : Time for this event to expire.
  

• k - keypress : Number of key presses.
  

• l - unassigned.
  

• m - mousemoves : Number of mousemove events.
  

• n - new : First time visitor for the site.
  

• o - unassigned.
  

• p - path : Path of page from location.pathname.
  

• q - conn speed : Speed of the user's internet connection.
  

• r - referrer : Referrer from document.referrer.
  

• s - scrolls : Number of scroll events.
  

• t - token : Temporary uuid generated for location.pathname.
  

• u - user : Persistent uuid generated for the path /.
  

• v - unassigned.
  

• w - window height : window.innerHeight || document.body.offsetHeight.
  

• x - scroll top : window.pageYOffset || document.body.scrollTop || document.documentElement.scrollTop.
  

• y - scroll height : document.body.scrollHeight.
  

• z - unassigned.
  

• R - read : Number of people reading.
  

• W - write : Number of people writing.
  

• I - idle :  Number of people idle.