NONE: Re: ONLINE-ADS>> cache counting standards
Re: ONLINE-ADS>> cache counting standards
Bob Stewart (rstewart_at_vmirror.com)
Tue, 16 Jun 1998 17:24:18 -0400
Matthew,
Thanks for the info. I have a couple questions. You noted that log
analysis is unable to determine visits:
>* Visits. Relating a number of requests to determine the number
> of visitors, or the audience is not possible soley using
> server logs. IP addresses are not useful since many users
> are behind firewalls. Mostly, cookies are used to track
> users. This has the problem that many users have cookies
> turned off on their browsers
How exactly does your system do this if not with cookies? I can understand
(in general) how it avoids caching, but how do you know that the request
for ad "A" came from the same person as the request for ad "B" if it isn't
through a cookie?
You also wrote:
>The fact that page views resulting from "back" button requests is a
>deliberate feature. The user has seen these pages, so they should be
>counted. If at some time in the future, the industry decided they
>should not be counted, it would be trivial to exclude them. Since both
>WebMeasure and Admeasure measure the duration of the page view, it would
>be simple to filter out pages which were viewed for less than, say, 5
>seconds.
Does your system actually know if the ad was within the viewable page? Say
a user goes to a page with the ad at the top, scrolls down the page to a
point where the ad is no longer viewable, follows a link, uses the back
button and returns to where he left off on the original page (so the ad is
still not in view) and scrolls further down and follows another link. Would
your system record that as a view?
You may be right that it's fair to count these back button viewings (if the
ad was in fact viewed.) But I think advertisers might want to have these
counts differentiated.
Most of our ads are on forum pages listing a number of messages. In this
case, users are definitely going back to the page repeatedly. With your
system ad views would probably show a 200-300% increase, before we even
factor in caching. It would be tough to make a case that all these viewings
are of equal value.
Bob Stewart
The Virtual Mirror
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