Adsense Impression not Equal to Daily Website Pageviews?

Wondering why does Adsense count lesser impressions?

[sid786]

Alright guys, I guess I have partially figured out why the overall website traffic is not equal to the Adsense impression.

For instance, let's assume that you, the webmaster, have websites generating around 10,000 pageviews every day -- and Adsense counts 8000 impression. This means you just lost the revenue for those 2000 impression. So where the heck did those 2000 impression disappear? That, as you know, is filled by PSA (Public Service Ad), Google Adword ad and so on. The sad truth is, simply put: You will not earn a dime when these ads are displayed on your website.

So what did I do?

I went to Google, typed in my website name along with the "Stop-word." And bam! The result were astonishing -- Commentators imprudently used profane words in the comment section of my blog. That was it! These slang comments were the culprit, and they are the reasons why my Adsense impression were diluted. And the earnings were plummeted.

As you know, Adsense dislikes Stop-words -- also included in the list of Stop-words are the keyword relating to drugs, death and medical. Replace those Stop-words with asterisk, or simply blank them out. Now you know why your website pageviews doesn't match with the Adsense impression.

Edit: I got rid of these slang comments with the help of "Content filter" plugin (only for Wordpress). Feel free to add your thoughts and boot out the Stop-words from your website. Right now! :)

[cien]

The 2000 are most likely from bots. Do you know for a fact that the slang comments were the culprit? Adsense only counts qualified impressions and ignores bot impressions is what I read a long time ago.

[HuskyPup]

Cien is most probably on the money here, bots can be deceiving little devils and for whatever reason Google doesn't seem to be able to distinguish them every time..

I have found over the years there is usually a direct percentage correlation between my logs and Google's Page Impressions and it's relevant about 97/98% of the time, the other 2/3% are usually days when there seem to be a huge data loss at their end or some totally unexplainable issue...these are always days when earnings are way out of kilter with everything else and stick out a mile.

[gmb21]

What about ad-blockers? Presumably Analytics would still count a page view, but Adsense wouldn't.

[DaStarBuG]

What about disabled javascript (yes, there are people browsing the web without JS)?
But Ad Blocker would be a much bigger percentage though.

[sid786]

Valid point. I never realized bots and the browser with no-Javascript support could be a portion of my overall website pageviews. However, I do have a unsettling feeling--and my stomach roils--about having slang comments on the website. It is better to eliminate them.

Edit: As far as earnings are concerned, I see no change. Really--In February--all hell broke loose.

[AdSenseAdvisor]

There's several reasons that AdSense impressions don't equal to the website pageviews, and the main reasons are listed in this AdSense help center article:

[google.com ]

In response to:

"As you know, Adsense dislikes Stop-words -- also included in the list of Stop-words are the keyword relating to drugs, death and medical. Replace those Stop-words with asterisk, or simply blank them out. Now you know why your website pageviews doesn't match with the Adsense impression."

Two things to note here.

1) Targeting is based off of the context of the page, not just individual key words. So while yes, these stop words can be factored into the content, the crawler is taking all of your content into account to serve the most relevant ads.

2) PSA's are included in AdSense page views, so this wouldn't be one of the reasons that AdSense impressions and website page views don't match up.


On a separate (but related) note about PSA's, we just announced today on the blog that we will be gradually retiring PSA's. If you're currently using PSA's as back up ads, I encourage you to read the blog post to learn how to change your settings and take advantage of other back up options going forward.

[adsense.blogspot.com ]

Thanks,
ASA.

[yplin27]

I have the same problem.

My pageviews is about 45000 but only got 23000 adsense impression.

Most of my visitors are using Google Chrome or Firefox. Is that because of ad-blockers? How can I find out?

[Leonard0]

sid786:
You don't mention where you got the page impression data from. If it's from Google Analytics then it most likely does not include visits from bots and search engine spiders, nor users with Javascript turned off.

I also have the same problem - a 22% difference between Analytics and Adsense page impressions.
Here are % stats from my Analytics:
Total page views 100
Unique page views 68
Adsense page impressions 78

A few weeks ago in another someone thread mentioned that they were losing 5% to ad blockers.
There is also a small percentage using Blackberrys.
What I can't figure is where the rest goes.