Website Visitor Identification·31 min read·Anonymous Visitor Identification — Part 10 of 13
Is an IP Address PII? What US Privacy Law Means for Identifying Website Visitors
California's privacy statute lists an Internet Protocol address by name and treats it as personal information whenever it can reasonably be linked to a consumer or household. This guide walks what an IP address becomes at each step of website visitor identification, when the opt-out signal in the browser has to be honoured, what the California pen-register cases and the Washington wiretap case actually held, and what five identification vendors say they do about all of it.
