Limit Network time, DNS and captive-portal queries on GrapheneOS 2025 releases
Network checks
Sensitivity 2/5
Default: On
Phones / GrapheneOS 2025 releases / Network time, DNS and captive-portal queries
Privacy-focused custom distributions redirect or minimise default Android network verification calls. While essential network checks still occur to maintain time and internet connectivity, users can often modify the target endpoints.
- Goes to
- Default
- On
- Control
- Can be limited
- Effort
- a few seconds
How to do it
Open Settings, select Network & internet, and configure Private DNS or time server settings according to your preference.
Usually found under: Settings > Network & internet > Private DNS
Menu names may differ by device and version.
What you lose
Misconfigured custom servers can interrupt internet connectivity or system time synchronisation.
What is collected
Ip address, network query timestamps, server response codes.
These standard network queries exist to synchronise internal clocks and determine whether an internet route is functional.
Retention is not stated here. The sensitivity rating is this site's own estimate.