How many of your users are actually unique? A new method for estimating the number of unique users

Currently used techniques of unique user measurement are seriously flawed. This paper introduces a novel method for estimating the number of unique users in site-centric cookie-based systems.

How many of your users are actually unique? A new method for estimating the number of unique users

Magdalena Urbańska and Tomasz Fryderyk Urbański Independent consultants, Poland

INTRODUCTION

The unique user metric is the key metric in the online traffic measurement. It answers fundamental questions in web analytics and online advertising such as: “How many people visited a website?”, “What was the reach of an advertising campaign?”, “How many people responded to a campaign by clicking an ad?”, etc. It is commonly used to gauge the success of online marketing initiatives and the popularity of websites....

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