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What is a Google Ads (Google AdWords) expert witness?
Google Ads expert witness: A Google Ads expert witness will conduct technical analysis in order to provide an opinion concerning pay-per-click (PPC) advertising on the Google Ads platform, which is the online advertising technology in which advertisers' ads are associated with certain words on Google and other search engines; the ads can appear when a person searches with those words, and the advertiser pays Google when the person clicks on the ad.

A Google AdWords expert witness is can also be known as a pay-per-click expert witness or a search engine marketing expert witness (aka, SEM expert witness) that focuses on the Google technology.

There are a wide range of analysis that a Google AdWords expert witness can provide, including revenue, revenue harm, trademark infringement, and advertising traffic, among many others.

Some of the many PPC metrics are:
  • Impressions
  • Impression Rate
  • Clicks
  • Cost per Click (CPC)
  • Click-Through Rate (CTR)
  • Quality score
  • Conversion rate
  • Cost per Conversion
  • Total conversion value
  • Return on Ad Spend (ROAS)

 Bernard J. Jansen, Jim Jansen, Jansen Expert Witnessing (current as of 2023)​
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