It sets the last octet of IPv4 user IP addresses and the last 80 bits of IPv6 addresses to zeros before it sends the info to Google Analytics. It basically allows your users to remain anonymous as far as IP addresses go in the analytics data that Google saves to disk.
It sets the last octet of IPv4 user IP addresses and the last 80 bits of IPv6 addresses to zeros before it sends the info to Google Analytics. It basically allows your users to remain anonymous as far as IP addresses go in the analytics data that Google saves to disk.