Forum Moderators: martinibuster
Some strange things are happening on the last 2 days. Yesterday eCPM droped from around the usual $30 to $5, CTR is the same as usual, and yesterday's earning dropped 70%.
Today, eCPM is very high, around $100 (haven't seen this amount before), CTR is also high (more than 15%), usually my CTR is not more than 10%. However, my earnings shows not more than $2.
I don't understand what is going on. I'm a newbie in GA and had just started my site on October 1st 2005. Could anybody help?
dinezz, eCPM is a tricky number--it's the amount of money you would earn for 1,000 impressions.
So if at the beginning of the day you have 10 impressions, and one $1.00 click, your eCPM is going to be $100.00. But that number is going to change! Let's say that at the end of the day, you end up with three $1.00 clicks and a total of 500 impressions. Your eCPM is now $6.00. That's a pretty drastic change, but that's the way it works.
eCPM changes throughout the day. I am guessing that dinezz gets not that many impressions, so his stats may fluctuate pretty wildly. I would suggest looking at the totals week by week, and seeing if you can spot any trends. You will also want to calculate your average EPC (earnings per click), which AdSense doesn't do for you. Take your earnings, and divide it by the number of clicks. So, for example, if you have earned $3.00 from 10 clicks, your EPC for that day is 30 cents. But look at weekly totals to smooth out the daily fluctuations.
