about impression - how is it counted

[newbies]

If a tower ad unit with 5 ads and a button with 1 ad,

which is correct for impressions if the page is viewed once:

tower 1x5=5 impressions
button 1x1 = 1 impression

or
tower 1 impression
button 1 impression

[John_Caius]

One pageview = one impression.

You're not allowed more than one ad unit on the same page.

[newbies]

I didn't mean multiple ad units on one page. I thought one page view would have 5 impressions if there is a tower on the page which has 5 ads within the tower.

It seems that impressions are counted by ad unit not by number of ads.

[Visi]

Nope that would make too much sense. :)

One page...one impression.

[Powdork]

but what counts as a pageview? Adsense impressions typically equal about 80% of my total pageviews. Whenever there is a discrepancy from that I go check my stats to see what kind of visitors I am getting. Usually the Yahoo Seeker has been through my site (stats program doesn't recognize its a bot) or someone has been up to some sort of nefarious activity. I have added several folks to my .htaccess after notice activity on my site that was not being counted by Adsense. So how does Adsense decide this, by IP address, request timing, etc.

[communitynews]

Most bots don't load the javascript adsense uses and therefore most bots don't trigger an adsense exposure.

[Powdork]

Good point. So is the number of impressions=number of times js is called, or is that number reduced by anything?

[communitynews]

I don't think there are many things that would reduce the number of impressions, however, cached hits inflate the number by a small amount from what you can see in your logs.

[steven mheakyle]

why my page impression is only 5% of my total unique visitors each day?

example : (not real numbers)

2000 Unique Visitor
100 Page Impressions

anybody explain?

[Powdork]

I'm not sure if they are showing PSA's as impressions. Other reasons might include the use of frames (each frame is a pageview) or flash files, etc.

[JinxBoy]

Steven, someone is hotlinking your images ;)

[steven mheakyle]

boy: nah lame answer, cant be hotlinked coz i protect my images!

[adfree]

Do you get a lot of PSA's?

[communitynews]

steven, check the user agent. Sounds like you might have alot of bots. You're looking for googlebot, slurp, etc.

[yeetien]

My Page Impressions is also 10% of my Unique Vistors.

I don't think it's the bots, because the bots' statistic is seperated.

Does PSA mean that I have my banner on some sites? If so, not that I know of.

How to I check if someone is linking to my images? backward link?

[Powdork]

Sometimes your stat program needs to be updated to include new bots. PSA's are Public Service Announcements that Google puts on your site when there are no ads to run.

[steven mheakyle]

@communitynews : what do you mean by bots? (googlebot,slurp, etc.) do u mean robots.txt? ( i have robots.txt in my websites)

[steven mheakyle]

followup! i observe in my stats that users(visitors)just stay a few seconds or minutes in my website(pages) is it a factor for "Page Impressions" how much seconds/minutes does a visitor view a certain website(pages) for page impression counts?

thanks

[communitynews]

Steven, your log files record a transaction for every request made to the system. One field in the records is "User Agent". That field will contain "Googlebot...." for requests made by google's spider.

[Powdork]

what do you mean by bots?

Bots will crawl and download your site. Sometimes they identify themselves as such, sometimes not. Some will be after content, some images, some email addresses, etc. If they don't identify themselves you can usually tell by amount of requests and the speed at which they do it. Not all the reasons they visit are bad.