Forum Moderators: martinibuster
after two days, it went down to $ 0.17 and $ 0.18 in the past two days
i do not understand how this eCPM works
The quality of work is same and number of updates and traffic is same.
The eCPM fluctuates randomly.
Some times it is frustrating to realise that you are getting less than you deserve
eCPM is a parameter that is calculated from your actual results. It is a standard measure used in the advertising business to assess the performance of different advertising campaigns or methods.
For AdSense, page eCPM is calculated as the amount you earn from a page in a given period divided by the number of times that page has been seen in the same period (i.e. number of impressions) times 1000.
If you had a leaflet campaign, eCPM would be your (estimated) earnings from the campaign divided by the number of 1000 leaflets you hand out. For a magazine advert, it would be the (estimated) earnings from the campaign divided by the number of 1000 readers of the magazine, etc.
What you actually see varying is two other parameters:
1) The CTR (click through rate) the proportion of people who see your page and click on an Ad on it. (This is affected by such issues as your page content, layout and the wording of the Ads it attracts.)
2) The Adsense earnings from the Ads that are clicked - this will depend on the bids made by the various advertisers - it can vary dramatically - the highest paying Ads may pay several orders of magnitude more than the lowest. A given Ad may appear on your page for a short period or a long time. It is probably changes to the Ads Google asigns to your page that is producing your eCPM fluctuations.
[edited by: Pengi at 9:04 am (utc) on Oct. 18, 2006]
I cover many topics in different sites (domains), and all of them are experiencing this drop in earnings, so I don't think it is caused by lack of advertisers.
It's time to work on content for the sites, this is the only part under my control in this bussiness.
The best thing to do is to pump in more content on the day when u observe the eCPM to be high, so that you can maximize on some lucky days
Improve the content when the eCPM is low.
I would say forget about ecpm and just build interesting sites that people want! That way you will get enough natural traffic so that you dont see variations in ecpm.
Mine has not varied on a single day in three years from $22.00 more than $1.60
Of course I could be wrong and you already have good traffic. In which case you need to spread out and cover different topics so that you are not relying on just a few advertisers.
To see some stability in the figures you will need about 3 to 5k page views a day.
I could not observe that the eCPM gets more robust once your traffic increases. For my sites, even with more traffic than mentioned above, I still see wild fluctuations of eCPM. It starts to smooth out when you apply a 31-day moving average to your data set.
;)
I succesfully recovered from the 27J disaster on the serps and my sites (covering lots of different topics) are back again to their previous positions for my target keywords and perform quite well with long tail searches.
However, this week adsense gives me half the money for the same clicks than last week. My guess is that I'm being smartpriced, but who knows.
