I called Google this week with a question about Quality Score.  I had a keyword with 1 impression, 1 click, and 1 conversion, but it had a LOW quality score.  My previous understanding was that CTR (in this case 100%) was the biggest influencing factor on adwords quality, but it seems not.

Google Support reviewed the keyword and told me that because the word was not present in the ad, it was being awared a low quality score.  The ad was relevant to the keyword, even though the keyword itself wasn’t in the ad text - causing a lower QS.

This reinforces the case for very small adgroups, with only a few highly relevant keywords that can be featured in the ad.

This entry was posted on Thursday, May 3rd, 2007 at 3:22 pm and is filed under Google AdWords. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.