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CardioLog Analytics usage event objects have the following properties:

• u - Decoded URL of the page the event is related to. For example, the URL of a "View" event will be the current page; the URL of a search result will be the clicked link.
• X - Holds the following event dependent information:
• Search event - The search term
• View event:
• If __Referrer parameter was passed to this page, __Referrervalue 
• If there is a Referrer cookie, sends the ReferrerReason cookie value 
• If this is the first page the user views in this session, sends "First In Session" and appends the data from __Referreragent
• Duration event - Time on page in seconds
• Y - Holds the following information:
• In Search event - Number of total results
• In Visit event - If there is a Referrer cookie, sends its content
• In Duration event - Last visit event ID
• Z - In Search event - First result on page (number of results)
• RI - Last event ID
• et - Event type code (eg., Goal event is 20, Leave event is 1, etc.)
• events - The event can have sub events sent with it. Typically, this is used when a search event is sent or with saved events.
  
  

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{
    "events": {
      "event": [
        {
          "u": "http://www.intlock.com/pages/home.aspx",
          "X": "|referral|blog.intlock.com|/about/||",
          "et": 0,
          "RI": 564940
        },
        {
          "X": "1",
          "Y": "7",
          "et": 23,
          "RI": 0
        }
      ]
    },
    "browserType": "Apple-iPhone5C2/1001.525",
    "sessionid": "861529144.325047542",
    "un": "INTLOCK\\tomj"
}

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