Visitation statistics are collected for this site using observe, which I use to understand how often pages are viewed, and from where. This data is stored in a private Google BigQuery table—to which only I have access—and is removed after 90 days. The information in this table is:
- URL visited
- Anonymized Source IP address (IPv4 to 20 bits, IPv6 to 32)
- Time of visit
- HTTP headers received
If your browser sends a Do Not Track header, I store no information about the visit to BigQuery.