Google Search Log Retention Policy

Official Google Blog: How long should Google remember searches?

After considering the Working Party’s concerns, we are announcing a new policy: to anonymize our search server logs after 18 months, rather than the previously-established period of 18 to 24 months. We believe that we can still address our legitimate interests in security, innovation and anti-fraud efforts with this shorter period. However, we must point out that future data retention laws may obligate us to raise the retention period to 24 months. We also firmly reject any suggestions that we could meet our legitimate interests in security, innovation and anti-fraud efforts with any retention period shorter than 18 months. We are considering the Working Party’s concerns regarding cookie expiration periods, and we are exploring ways to redesign cookies and to reduce their expiration without artificially forcing users to re-enter basic preferences such as language preference. We plan to make an announcement about privacy improvements for our cookies in the coming months.