Even there can be multiple users behind a single IP. I think this is NOT possible to detect the same user without using any previously saved data on the same PC.
On Mon, Feb 22, 2010 at 3:07 PM, Kadir Avcı <[email protected]> wrote: > I have a website and I want to choose best website in my webpage with > pointing system. Users give some points to websites. > I check IP + Cookie but if the user delete cookie or change IP address > again give some points. How can I prevent this? > PS: There is no membership. > > > Kadir Avcı > Software Developer | Web Developer > web: www.kad1r.com | twitter: www.twitter.com/kad1r | mobile: > +90.555.676.97.93 >
