How long does Zscaler store my logs?

Logs are stored for 180 days in the Zscaler Nanolog servers. Zscaler also offers the Nanolog Streaming Service (NSS), a virtual machine (VM) that can stream web traffic logs in real time from the Zscaler Nanolog to your security information and event management (SIEM) system, such as Splunk or Arcsight, enabling real time alerting, correlation with the logs of your firewall and other devices, and long term local log archival.
Please contact your Zscaler representative or Zscaler Support for more information on subscribing to NSS.