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What really controls ECPM?

         

alika

11:40 am on Jul 30, 2009 (gmt 0)

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I've been with Adsense since 2003, so I know how the eCPM is calculated.

But I still can't really understand what makes the eCPM flux widely from day to day. My eCPM changes anywhere from 15-68% per day. Even a 10% difference in eCPM at the same level of traffic results in a $100+ difference in earning.

I have a very high eCPM (way higher than what I have seen said here) for a 10-year old site with around 5,000+ pages. I'm not talking of single page eCPM but site-wide eCPM.

Is there anything I can do to control the eCPM fluctuations?

ken_b

1:42 pm on Jul 30, 2009 (gmt 0)

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The number of pages on a site doesn't matter to eCPM. I only say that to help focus the issue.

It's the number of page views, EPC and CTR that make up eCPM.

The variance in eCPM comes from changes in the number of page views, EPC and CTR.

Unless you can control those three factors, you can't control eCPM.

EPC is the one a publisher can't control much. That's something the advertiser and Google controls. You might be able to attract higher paying ads by writing better or different content, or even by just using different words to say the same thing. Probably not easy to sort out though.

Page views can be controlled easier. That number can be made to go up or down just by on site changes. Off site actions can also draw more traffic and thus page views of course. Getting on topic traffic is the key to this though.

That brings us to CTR. That's a function of having content that attracts ads that are not only on target but are also well enough written to get the interest of your visitors and convince them to click through.

So ...

Write good content.
Get on topic traffic.

and then....

Do what ever you can to get advertisers to actually write effective ads :)

That last one may be the toughest, and might also be the most important for for publishers using AdSense perspective, especially considering Smart Pricing.

alika

4:56 pm on Jul 30, 2009 (gmt 0)

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I think the amount of our eCPM (and income as well) proves the quality of our content and the responsiveness of our audiences to the ads (and they are responsive).

We've been carefully tracking the type of content that brings in the most money, and we're focused on producing those types of content. We run a multi-topic site catering to a specific type of audiences, and we're very focused on our analytics.

It is just frustrating to think that you cannot control the variables in play with Adsense. I would love to have a situation where if eCPM falls down today, then you need to do X tomorrow -- except you don't really know what that X is that could bring the eCPM back up.

WolfLover

5:21 pm on Jul 30, 2009 (gmt 0)

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That is the 60 million dollar question! I wish there was an easy way to figure it out.

For my sites, the more traffic I get the lower the eCPM goes. It's frustrating because one would hope to get more traffic, but when the eCPM keeps going down on that traffic, why bother?

My two cents!

ken_b

5:47 pm on Jul 30, 2009 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month



the more traffic I get the lower the eCPM goes

That's because you are getting the wrong traffic, and/or traffic from the wrong source(s). When that happens you have a couple of options.

1: Write or build some new content that better matches what the traffic is looking for (see your logs to check what brought them to your site). This is probably the easiest and most effect solution.

2: Modify your existing content so it attracts more targeted traffic and/or less poorly targeted traffic.

3: Hunt down which of your current traffic sources is sending the most accurately targeted traffic and either try to increase traffic from those sources or find new and similar traffic sources and try to develop a traffic flow from the new sources.

alika

6:55 pm on Jul 30, 2009 (gmt 0)

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If you have Google Analytics tied to your Adsense account, create an advanced segment where adsense clicked is equal or greater to 1. Then you can more clearly understand who are these users that click on the ads and where they come from

Even without creating the advanced segment, just look at the Adsense section to see the sources of traffic that are are the most responsive to your ads -- where you get the best click through, most revenues.

In our case, for example, the best audience most responsive to Adsense ads come from Yahoo Answers. So we strive to participate more on this site as their traffic give us the most in terms of Adsense revenues. We don't bother with Stumbleupon traffic, for example, because their traffic never clicks on the ads

bgd2006

2:29 pm on Jul 31, 2009 (gmt 0)

10+ Year Member



You can use Google Analytics to see the eCPM for various pages. If one page is delivering low eCPM but high traffic put some links on that page to content that is delivering higher eCPM. The goal is to direct your traffic to the higher eCPM pages rather than having them leave your site.

tim222

6:52 pm on Jul 31, 2009 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



I think those wild swings are sometimes due to competition among advertisers. Every once in awhile somebody comes along who wants their ad in position #1 no matter how much it costs. Sometimes you can tell who the advertiser is just by looking at your pages. Those guys don't last long but they sure are fun while they're around.

alika

1:22 am on Aug 1, 2009 (gmt 0)

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I wish those guys would stay around longer :0)

On July 30, eCPM increased by 40% that brought an additional $200 to the average daily revenue. It sure is nice when those advertisers are present.

Creating content that gets the most revenue is more of a long-term solution. I'm just looking for what can I do today to keep my eCPM in that extra 40% level.

I guess Adsense is just one roller coaster ride

IanCP

3:33 am on Aug 1, 2009 (gmt 0)

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All affiliate programmes are a roller coaster.

The "why's?", the "what-fors?" and "hows?" still elude me after 11+ years.

No I'm not, never have been into affiliate marketing and never, ever intend to do so.

A grateful "thank you" from a reader of one of my tutorials means much more to me than a monthly AdSense deposit.

So what controls eCPM?

1,001 variables over which you have very little control unless you fall within my "personal definition" of MFA where you tweak on your site/s this and that every 15 minutes.

Yes, a very cynical view that "real" content should still reign supreme.

YieldBuild

4:16 am on Aug 1, 2009 (gmt 0)

10+ Year Member



I'd say pretty wide fluctuations in CPM from AdSense and PubCenter are normal. There are fluctuations in traffic, advertisers etc which is out of your control.

I like the suggestion above of creating segments to analyze. On top of that, I'd suggest using at least PubCenter in addition to AdSense. There are definitely segments where we see PubCenter outperforming AdSense.

moTi

9:40 pm on Aug 3, 2009 (gmt 0)

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On top of that, I'd suggest using at least PubCenter in addition to AdSense.

for the few publishers in this forum (namely u.s. residents) who have access to this service that is.
regarding the rest of the world, there is still no real adsense alternative - even from the big players - since all those years on the net..

eeek

3:55 am on Aug 4, 2009 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month



there is still no real adsense alternative

Patents?