As poster above stated, CGI or Cookies are the easiest

I'd recommend cookies, since you can normally track individual computers on a single IP using them. But you can't track them if they continually change cookies without either being a static IP and the only computer on that IP, or installing some plugin to identify them (IE what banking plugins do)

In reply to Re: How to identify the Visitor by Inexistence
in thread How to identify the Visitor by romy_mathew

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