snoopy1122 - 11:48 pm on Sep 8, 2011 (gmt 0)
Thanks for the analysis,
Yes exactly 1st place all the time, the ads are a lot better than the ads in other places (I've tested their ads) and the domain name is an exact match for the keyword.
Are you sure quality score gets calculated on the a per ad basis? Just reading around over the last 24 hours I got the feeling it is done on the basis of keyword?
The thing about all this is, if the CPC is correct then the ad with the lower CTR is the better performer. (that is because for each ad CTR x conversion rate is almost identical). around 0.012. ie the ad with the lower CTR has a higher conversion rate (because price is mentioned) which almost exactly offsets the lower conversion rate on the ad without a price. So the lower CTR ad is getting me the same level of sales with a lower spend.
What I was thinking about this morning, if QS were calculated on the basis of keyword then is the higher CTR ad effectively subsidising the lower CTR ad in terms of quality score and hence average CPC? ie if I stopped running the higher CTR ad would the average cost shown of the lower CTR ad rise? (hope you can follow all that)
Another thing I was wondering,
If I have an ad with a 14% CTR that gets a QS of 10 (say the competition's CTR is 5%), if I then run an ad that has a 24% CTR do I get any further QS boost? (in google's backend) If not then the higher CTR ad can potentially result in a lower ROI like the situation above.