Down Device vs OpenNMS
| Down Device | OpenNMS | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | |
| Paid from | $9/mo | $500/mo |
| Platforms | Web | api, Linux, self-hosted, Web |
| Free plan | Yes | Yes |
| Paid from | 9 /mo | |
| Check interval | 15 minutes | |
| Resolution checks | Yes | |
| Record-change alerts | Yes | |
| Alert channels | email, SMS | email, sms |
| Synthetic checks | Yes | |
| Traffic monitoring | Yes | |
| Topology maps | Yes | |
| Deployment | self_hosted |
Listed together in Best DNS Monitoring Software