[Zope] defense against bots..??

[Ulrich Wisser]

Hello AM,

the problem is to decide wether a robot or a browser is
downloading the page. If the robot is very simple or the
robot user very unexperienced it would be possible to detect
the robot simply by the user-agent. But most robots will
disguise themselves as Internet Explorer.

Look in your logfile. If you see robots than you can
do something. But be very carefull if you don't want to
exclude even the searchengine robots. Best thing to do is to
set up a robots.txt for your domain and (may be in your
standard_html_header) detect the user-agent and serve a
different content. Don't just send nothing or an error
message. That would trigger the robot and make him disguise
itself as Internet Explorer.

If you are really sure it will work with your audience you
could try to protect your picture links with Javascript.

Ulli


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