Name servers
Name servers show which authoritative DNS infrastructure is delegated for a domain.
What .auDO observes
The delegated authoritative name-server set
.auDO records the public name-server values returned for each domain and compares set-level changes between observations. The records are direct evidence; DNS-provider classification is a separate inference.
Technical fields
Why it is observed
Delegation movement is visible control-plane evidence
Why it matters
Name-server changes can affect where DNS control is exercised and provide context for provider migration and wider infrastructure movement.
What visible change may mean
A change may reflect DNS-provider migration, registrar DNS changes, consolidation, recovery work, delegated infrastructure changes or maintenance.
Interpretation limits
Delegation change needs surrounding context
A name-server change does not establish fault, intent or service quality. It should be read with collection timing, provider-inference limits and related DNS evidence.
Common retained observations
Name-server set change
Where to use this evidence
View delegation and provider context
Related concepts
Delegation and name-server movement
Related signals