_utma Keeps track of the visitor about:

  • Number of times a visitor has been to the site
  • When their first visit was
  • When their las visit ocurred
_utmb Takes a timestamp of the exact moment in time when a visitor enters the site
_utmc Takes a timestamp of the exact moment in time when a visitor leaves the site
_utmz Saves information about the visitor:

  • Keeps track of where the visitor came from
  • Search engine the visitor used
  • What link the visitor clicked
  • What keyword the visitor used
  • Where the visitor is when accessed the site
_icl_current_language Keeps the visitor language code.