I'm noticing my qs on various keywords is changing every single day, from great to ok and back again and then back to ok. Sometimes I see it change after only a few hours going by. Is this common? Just wondering if the algo will ever decide to keep these kw's at the same qs for at least one week. I realize they say qs is dynamic, but I did not think it would be changing quite this much. As for kw's I mostly stay above 15% ctr - for all kw's combined. The account is almost one month old.
If you track clicks.. You can see google adbots following your internal links. I assume at that time they are recalculating your QS at that time. At other times they might not follow through so you would need to have a script set up to track each "visitor".
"Question 11 - I just a made a lot of changes to my AdWords campaigns and to my landing pages to try and improve my quality score. How soon should I expect to see quality score changes in my account? When new keywords are added Google calculates the quality score immediately to determine the minimum bid. Quality scores are updated based on how quickly Google can gather statistically significant data sets to calculate a new quality score. This can happen numerous times a day for high volume keywords and phrases whereas lower volume terms may have quality score updates applied a few times a week. The ad rank quality score is updated in real time and is based on historical data. In terms of updating the landing page quality score, Google says: "The AdWords system visits and evaluates advertiser landing pages on a regular basis. Due to the evolving nature of the quality evaluation system, the frequency may change based on improvements to the system or the level of user traffic to AdWords ads and landing pages. We plan to visit pages at least once a month but may do so more often." That's from here.
These are very low volume kw's. I logged in today and saw that one kw has changed once again. It was ok for two days and is now great. How long it will stay great, based on what I've been seeing is anyone's guess. I imagine in 2 days it will be back to ok again.