This adds {bbackup_94402fb9ba80f392e0976ece85f92b2b876bfcaed8d83250cc06083f7139c7d9}1$sanonymizeIp{bbackup_94402fb9ba80f392e0976ece85f92b2b876bfcaed8d83250cc06083f7139c7d9}2$s, telling Google Analytics to anonymize the information sent by the tracker objects by removing the last octet of the IP address prior to its storage.