Unique Browser = Unique Viewer?
In the mysterious world of the Internet, sometimes the most obvious statistics get hidden amongst the plentiful jargon and myriad of metrics. NBR commentator, Chris Keall, has this week highlighted the phenomenal size of Trade Me’s membership, asserting that the answer to the question: ’How many New Zealanders use Trade Me? is simply ‘All of us’.
His explanation of how UBs (Unique Browsers) are calculated is pretty accurate. However the measure still to be cracked is a calculation of how many people either share the same pc/internet connection, or gather around computer screens as the auction nears closing, auto-extends with bids frantically placed by multiple parties and tension rises. If it was a magazine or newspaper we would calculate this as ‘readership’, but for computers connected to the Internet, we assume one IP address means one computer and one person.
Perhaps counting UBs is a relatively conservative measure of how many unique viewers are spending time on websites such as Trade Me?






