The schedule
Fixed periods, applied automatically.
Each kind of record is deleted when its period ends:
• events, including IP address and approximate location: 30 days;
• IP address per day, aggregated: 90 days;
• the full record of each submission, kept to rebuild events: 90 days;
• per-visitor daily totals, keyed by visitor ID: 400 days;
• device identity, for recognising a returning visitor: until 180 days after the device was last seen;
• short-term activity counters, hashed: 8 days;
• aggregate analytics: 45 to 100 days in detail, 800 days as daily totals;
• usage and billing records: about 3 years.