Datros perjudiciales

A website (for example: CASINOS ONLINE … -_- ) needs to collect information from anyone who uses the same IP as this house. The information that the casino needs to collect is used to “…”.
Where could such information be found? I would like to restore such information. Is it in my search engine? in my operating system? or maybe on the hard drive=?
thank you :slight_smile:
pd: malditos cas!nos -$:(