Unbound

Unbound is a validating, recursive, caching DNS resolver.

Name server software · by NLnet Labs · unbound.net

Open Unbound in AirStack

What Unbound’s own pages say

What it says it doesUnbound is a validating, recursive, caching DNS resolver. unbound.net
PlatformsBSD distributions, Linux, macOS unbound.net
Open sourceYes unbound.net
LicenseIt is free, open source software under the BSD license. unbound.net

Each value is a quote AirStack found on the product’s own pages, read 2026-11-04. A missing field means AirStack has not found it on its pages.