Welcome to the monestary!

Is your web site, like mine, a collection of html pages? If it is then Perl can't do this directly.

If one of your pages has a form that a visitor can fill out and then click the submit button then you may be in business. You can set the form up to 'submit' the form details to a cgi script written in Perl. The script can then set and retrieve cookies (as edan has pointed out above).

Have a look at the cgi tutorials to get an idea of what is involved.

Best of luck

btw you can get quite a lot of useful info from the access logs