Forum Moderators: martinibuster
On top of that the last two days of this month fall on a weekend... I imagine many advertisers figure they'll just wait until Monday to replenish their budget.
I run a tutorial site where the majority of visitors are college students taking a class in a certain subject. So, visits are somewhat cyclical, with the fall and spring semesters being best. Joined AdSense is June 2007, so 2008 is the only year for which I have complete data.
That said, when I look at average daily earnings for 2008 (all months) I see that the last week is slightly (1.5%) better than the first week. But the third week of the month is about 15% better than the first week, and is my best week. On average, daily earnings fall by about 12% from the third week to the last.
If I exclude January, June, and July (far fewer students in class) then I see that the first week outperforms the last week of the month by about 5.5%. I still see that the third week is the best week as measured by average daily earnings. The fall from the third week to the last week is about 10%.
Overall, though, all of my metrics were remarkably similar regardless of the week of the month (i.e., pretty darn stable). When I look at the data on a monthly basis, there are some pretty significant differences. The fall months are the best, winter the worst.
I've only battled a CTR downturn, never EPC down. Impressions are "my" problem. Current "text only" code also allowed graphics. For whatever reason.
It was inappropriate "Girlie" graphic ads versus "text ads" relevant to my site.
The ultimate answer was so simple and the geniuses at AdSense would really hate it.
CTR went from 0.67% to 2.00% amost overnight.