High PPC Conversion Rates (part 3)
By James Lee
Continuing the discussion of the problem of low conversion rates, we’ll review the impact of our choice of keywords which are usually the most critical part of any PPC campaign.
Let’s look at some examples:
One possibility is the use of too broad a term. Let's say you relied on the keyword “loan.” There will be some viewers who will immediately click through, looking for a home loan, even though the following ad text clearly refers to auto loans. The more often this occurs, the further your conversion rate sinks.
Another example would be to use keywords that only indirectly refer to the target action. For example, suppose you want to sell auto insurance. You might use the keyword "DUI" to encourage visitors who has been ticketed for DUI and need to pay higher premiums. What may happen, however, is that those who click "DUI" may also include many who are only looking for a traffic school.
These examples may imply narrow keyword selection, yet we’ve been told the best strategy is to use a large number of keywords to lower our cost-per-click ratio. So, which is more important — cost-per-click or cost-per-conversion?
Since the “bottom line” can only come from conversions, when it’s a close call we’re better to tighten up the keyword selection, perhaps pay a little more, and maximize our conversion count.

