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From 5k Kate <>
Subject Re: [users@httpd] Missing log entries?
Date Fri, 03 Apr 2015 00:00:00 GMT
Is it possible that the image links are being shared separately from the
page? Theoretically someone could go and post your image into another page.


On Wed, Apr 1, 2015 at 1:09 PM, Andrew Moise <> wrote:

>   Hello all.
>   I'm trying to analyze the behavior of visitors to my web site by
> parsing my Apache access log, and it seems that the log is missing
> some entries. For example, it's happened before that there's an entry
> in the log for serving an image, with a referrer set to one of my HTML
> pages, but there is no entry in the log for that HTML page (either
> before or after the entry for the image loading) from any similar IP
> address. I don't think that the headers I'm emitting would cause the
> browser to cache that particular HTML page.
>   Furthermore (and more to the point of why I'm concerned about this),
> parsing the apache log indicates a small fraction (maybe 25%) of the
> number of visitors indicated by a third party logging tool (in this
> case
>   Is there anything that could cause this? For example, does apache
> not put an entry in the log if the connection is interrupted before
> the entire HTML file is emitted?
>   Thanks in advance for your help.
>   -Andrew
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