Nagios XI vs NsLookup.io

Nagios XI plans

• Standard — 100 Nodes$2,595, paid once
• Enterprise — 100 Nodes$4,690, paid once
• FreeFree
• Standard$2,595, paid once
• Standard (100-Node)$2,595, paid once
• Enterprise$4,690, paid once

NsLookup.io plans

• Free—

Pick Nagios XI if…

Nagios XI suits teams that want to monitor infrastructure from a Linux server they manage. It is also relevant to organizations that need self-hosted deployment, node-based licenses, or offline installation.

Pick NsLookup.io if…

It suits organisations that need ongoing DNS visibility, change alerts, and an audit trail for security or compliance work.