
What does eCPM mean on my Google AdSense report?Would you mind explaining my stats below, please?
This is my Adsense for content and I enabled it few months back, if i read your post correctly it seems that my eCPM is $13.79 is what I can ask for people placing their Ads on my blogs (where my Adsense is running) and charge them per click? or what is the measure? First off, let me say that you have good numbers there! An effective click-thru rate (CTR) of 2.81% is good for Google AdSense, actually, and what's even better is that the keywords that are matching your content are valuable too, which is what you see with the eCPM figure. Now, let's talk about how this is all calculated. Much of this is pretty straightforward, to be fair. Page impressions is the number of times that Google showed an AdSense advert on your page or site. In this instance, you displayed an even 2600 adverts over whatever time period you're summarizing. Clicks is the number of times people clicked on these ads, and your click-thru rate is calculated thusly: CTR = Page impressions / Clicks
Since much of the actual valuation data is hidden by Google even to you as a publisher, the only other actual figure shown here is the net value of those 73 clicks: $35.86. How do they calculate the effective CPM value? Again, a formula: eCPM = (Earnings / Page Impressions) * 1000
In your case, your earnings are 35.86 and your page impressions are 2600, so you can do the math and come up with the $13.79 eCPM yourself too. The problem is that the value of your page and your keywords varies over time. Some times the ads on your page might be worth $X per click, while the very same advert at 3am, or a week later, might be worth 1/10th $X, or worse. On my own AdSense reports I see the eCPM fluctuate rather dramatically from a high of over $17 to a lower of about $7. This means that as a basis for you calculating the CPM for competing ads on your pages, it needs to be taken with a grain of salt. Perhaps the fairest strategy would simply be to average out your eCPM over a few weeks and use that running average, or, to be profitable, 10% more than that running average, as your advertising rate for other ads. Two additional thoughts: first, be careful that your own ads don't look too similar to AdSense blocks, because that can get you in trouble with Google. Second, realize that if you are indeed calculating on a CPM basis, that means you'll need to be providing traffic reports to your advertisers, which might be more trouble than it's worth. Instead, I suggest you consider having a flat monthly ad rate based on CPM and your average monthly page views. Hope that helps clear things up with Google AdSense!
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Never miss another useful Q&A article again! Subscribe to AskDaveTaylor with Google Reader. Thank you so much for your valuable explanation ,it makes sense. Posted by: Moha at April 19, 2007 10:06 PMHi Dave, you're a real expert. The world needs more real ones so thanks. I am a computer Dummie and I still don't understand this stuff. I can't reconcile the number of people viewing my blogs with the numbers appearing on my Adsense account. The figures in the account are nowhere near the total numbers on my blogsites. Why? Posted by: Xingtiao at June 4, 2007 3:48 AMGiven your name, it's quite possible that you are overseas or a significant percentage of your readership is overseas. Note that the way the Google AdSense engine works, as far as I understand, is that it reports pages upon which it has found and placed an advert, not pages that requested an ad. The difference? If you have readers from a region that are blocked or for which there aren't any advertising matches, they'll be a page view for you, but not for Google. So your stats will not match. Posted by: Dave Taylor at June 4, 2007 9:28 AMCPR is actually calculated by clicks/impressions and not the other way around. Posted by: Danny Wright at January 2, 2009 2:15 PMI'm not sure that's right, Danny. I assume you're talking about CTR, and if you had, say, 1000 ad impressions that generated 17 clicks, by your formula you'd have 17/1000 = 0.017 or 1.7% Doing it the other way would be 1000/17 = 58.82 Uh, um, you're right, I'm wrong. :-) Posted by: Dave Taylor at January 3, 2009 9:58 AMdo we have to pay e-cpm I have a lot to say, but ...
I do have a comment, now that you mention it!
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