Welcome to WebmasterWorld Guest from

Forum Moderators: incrediBILL & martinibuster

Message Too Old, No Replies

Traffic up - eCPM way down

Small site experiment showing strange results



4:05 pm on Jan 5, 2009 (gmt 0)

5+ Year Member

I am fairly new to adsense, so before putting it on one of my main sites I thought I would play around on an small old site. What I found was strange and has left me wondering if adsense is such a good idea.. Can anyone shed somelight on this?

When I first put adsense on I got about 100 eCMP and a click-thru rate of about 5% I was quick happy with this using an ad block.

This was consitent for about a month, although I tweaked colours slightly they has little effect.

Then after about 3 months of a consitent eCMP & Click thru I noticed a field to make adsense field available to advertisers - google seems to recommend this, so I ticked the box and gave it a name. Immediately, that day my eCMP nose dived, taking with it my click thru rate. They dropped to about 5 eCMP and 2% click thru. I left it 14 days to see if things settled (the ads where truely rubbish). After this time I unticked the box and put things back to how they where before - althought my click thru rate is back to around 5% the eCMP is still dreadful, 5 max.

Is this normal, or have I done something wrong somewhere - aside from ticking that "make this an ad placement box" trust me to break something that wasnt broke. haha

Any help guys?


4:15 pm on Jan 5, 2009 (gmt 0)

5+ Year Member

Soxos, there is a lot of turmoil in the ad world right now and you have not indicated your traffic. Unless you have several thousand daily page views, such turbulence is possible.


7:12 pm on Jan 5, 2009 (gmt 0)

5+ Year Member

Hi ecmedia,
No this site has week day daily 500-600 page impressions per day - its only a small site I wanted to try adsense on.

Do you believe the huge drop in eCMP to be normal turbulence rather than anything to do with making it a targetable ad placement? It just seems really strange to both occur on the same day.

If I was to try a larger site, do you think I should remove the small site entirely or keep it running and just add the larger site?



9:18 pm on Jan 5, 2009 (gmt 0)

5+ Year Member

Actually I noticed recently when I was trying out some new ad units that they performed better before I made them available for placement by advertisers, I thought it was just coincidence but now I'm wondering... Soxos there's only one way to find out uncheck the box or create a new ad and test it out.


12:38 am on Jan 6, 2009 (gmt 0)

5+ Year Member

You're calling 5-pound eCPM "dreadful"? Are we living in the same world? I would kill for that kind of rates!

I am struggling with sub-$1 eCPM and my traffic is the highest quality there is, mostly US, no-kids $100K+ earners (according to Quantcast).


10:22 am on Jan 6, 2009 (gmt 0)

5+ Year Member

Hi loudspeaker, I apologise, as I have only experimented with this one site, I consider 5eCMP poor NOW, as for the first 3 months the adsense was on it was often above 100 eCMP. Perhaps I am just expecting too much? It is not really the numbers that bother me, but the fact there was a sharp, instant almost drop - until I figure out why this happened I feel like I have not learnt anything from the test I did with this first site :(


11:45 am on Jan 6, 2009 (gmt 0)

WebmasterWorld Senior Member 5+ Year Member

Perhaps I am just expecting too much?

I guess so.

What traffic levels are you talking about? You mention a "small" old site. How small is it, really? How many unique visitors do you see per day/month? How many pageviews (ballpark figure)?

One explanation for your problem could be that the numbers are fairly small, but the earnings per click are very high. In order to get an eCPM of $100 with 5% click-through, each click averages $2.00

For example:

100 pageviews
x 5% Click-Through
= 5 Clicks

x $2.00 Earnings per click
= $10.00 Revenue

eCPM = $10.00 revenue/100 pageviews x 1,000 = $100.00

Now, an average EPC of $2.00 is unlikely to be sustainable as traffic grows. Add in the economical crisis, and it's easy to see why your eCPM has dropped off. And yes, I am with loudspeaker being jealous of your 5 pound eCPM. ;-)


12:18 pm on Jan 6, 2009 (gmt 0)

5+ Year Member

Yes Zett, your assumptions are quite accurate, although more like:
200 page views per day x 5%

Revenue per day was around $10 - $15 dollars, so you pretty spot on really. Now it is more like $5, as although eCPM is way down page impressions are up to about 400/day (according to adense)

My stats show pageviews at aroun 800/day now (when I starts using adsense about 5 months ago it was only about 500/day)

So my conclusion should be
1) the first few months where just a combination of luck and good timing.
2) ticking the "show as ad placement box" was just a terrible coincidence and although it occured the same day as the nose dive i should try and block it out as a reason.
3) current results / clicks are quite typical.

Thank you all for shed some light on this.

Now what do you suggest i do, as i think i just need to try it on one of my main sites - should i remove this small one or just have 2 in one account. Someone once told me you get lower eCPM if you have different sites in the same account as they can drag each other down.

Complicated stuff this adsense, im used to affliate schemes - but hey you have to try all things!


1:01 pm on Jan 6, 2009 (gmt 0)

10+ Year Member

It could be that advertisers have been charged for a click that they feel was to high and it didnt give them a return for their money. They may have blocked your site and if several good advertisers block your site, your revenue goes down. On top of that the economic crisis and the overall advertising industry is currently not doing well. Just my 2 1/2 cents.

Featured Threads

Hot Threads This Week

Hot Threads This Month