ISNIC's scheduled maintenance windows are on Tuesdays, Wednesdays and Thursdays at 10:30 UTC.
Frontend services are updated on Tuesdays and Thursdays.
Updates are split onto two days to minimize risk of problems causing total service outage.
Database services are updated on Wednesdays.
When an update requires a database restart, there is always a short disruption in services.
If a critical security update is needed, it may be performed outside of these scheduled maintenance windows.
Internet á Íslandi hf - ISNIC