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Domotz vs Naemon: catalog facts
Domotz	Naemon
Paid Paid service with a 14-day free trial that needs no credit card.	Free Free community project.
Web	Linux, Self-hosted
Layer-2 device identification across monitored sites Remote troubleshooting from one platform	Drop-in successor for Nagios users Bug fixes and performance work on the Nagios 4 core
Paid service with no free tier mentioned Cloud-managed, so monitoring data goes through the vendor	Configuration follows the older Nagios style Needs a server to run on
Hosted service	Self-hosted
Closed source	Open source
License not stated	License not stated
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.