Click Fraud Jumps to Nearly 16% in Second Quarter

July 19, 2007

This article is included in these additional categories:

Paid Search

Pay-per-click (PPC) industry fraud figures for the second quarter of 2007 increased a full percentage point from the previous quarter, reaching an average of 15.8%, according to Click Forensics, Inc.’s Click Fraud Index.

Key findings from data reported for 2Q07:

  • The overall industry average click fraud rate was 15.8% in 2Q07 – an increase from the 14.1% for the same quarter in 2006 and 14.8% in the first quarter of 2007.


  • The average click fraud rate of PPC advertisements appearing on search engine content networks, including Google AdSense and the Yahoo Publisher Network, was 25.6%. That’s up from 21.9% in 1Q07 and 19.2% in 4Q06.


  • Traffic from botnets doubled from Q1 to Q2 and contributed significantly to the increase in click-fraud rates.
  • In Q2, the greatest percentage of click fraud originating from outside North America came from France (5.1%), China (3.2%) and Australia (3%).


The FBI recently reported that botnets – which are used to facilitate spam, identity theft, denial of service attacks, phishing, spyware distribution and click fraud – have infiltrated more than 1 million U.S. computers.

“Click fraud has become the new spam and it’s clearly a problem that is getting worse, not better,” said Tom Cuthbert, president and CEO of Click Forensics.

“A significant percentage of today’s click fraud traffic can be attributed to two growing areas of concern for search advertisers – traffic that comes from botnets and from parked domains or made-for-ad sites. Advertisers running campaigns on content networks are especially vulnerable as they are increasingly targets of this growing pool of savvy fraudsters.”

The Click Fraud Index monitors and reports on data gathered from the Click Fraud Network, which includes more than 4,000 online advertisers and agencies. It provides industry PPC data collected from online advertising campaigns for both large and small companies.


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