# Nagios alternatives: what AI models name instead, October 2026

IT AI Recommendation Index, October 2026 Edition. 468 of the 504 answers in the 2 categories where Nagios holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://it-ai-index.com/vendors/nagios/alternatives/

## Named instead, most often (every category and segment added)

- Datadog: 51
- Paessler PRTG Network Monitor: 43
- Zabbix: 29
- Auvik: 22
- ManageEngine OpManager: 22
- SolarWinds Network Performance Monitor: 18

## Network monitoring and management

**Small business**: 74 of 84 answers did not name Nagios (Nagios is #8 of 12 at 2%).

- Paessler PRTG Network Monitor: first choice in 36 of those 74
- Domotz: first choice in 10 of those 74
- ManageEngine OpManager: first choice in 6 of those 74
- Zabbix: first choice in 6 of those 74
- Auvik: first choice in 5 of those 74
- Atera: first choice in 3 of those 74
- Checkmk: first choice in 2 of those 74
- BackBox: first choice in 1 of those 74

**Mid-market**: 75 of 84 answers did not name Nagios (Nagios is #7 of 12 at 4%).

- Auvik: first choice in 14 of those 75
- ManageEngine OpManager: first choice in 12 of those 75
- Paessler PRTG Network Monitor: first choice in 7 of those 75
- Zabbix: first choice in 6 of those 75
- SolarWinds Network Performance Monitor: first choice in 4 of those 75
- LibreNMS: first choice in 2 of those 75
- LogicMonitor: first choice in 2 of those 75
- Datadog Network Monitoring: first choice in 1 of those 75

**Enterprise**: 80 of 84 answers did not name Nagios (Nagios is #12 of 12 at 0%).

- SolarWinds Network Performance Monitor: first choice in 14 of those 80
- LogicMonitor: first choice in 9 of those 80
- Cisco Catalyst Center: first choice in 8 of those 80
- Datadog Network Monitoring: first choice in 5 of those 80
- Kentik: first choice in 4 of those 80
- Auvik: first choice in 3 of those 80
- Red Hat Ansible Automation Platform: first choice in 3 of those 80
- Ansible: first choice in 2 of those 80

## Infrastructure monitoring

**Small business**: 79 of 84 answers did not name Nagios (Nagios is #13 of 14 at 0%).

- Site24x7: first choice in 11 of those 79
- Paessler PRTG: first choice in 10 of those 79
- Zabbix: first choice in 8 of those 79
- Grafana: first choice in 7 of those 79
- Netdata: first choice in 7 of those 79
- UptimeRobot: first choice in 7 of those 79
- Datadog: first choice in 6 of those 79
- Better Stack: first choice in 5 of those 79

**Mid-market**: 80 of 84 answers did not name Nagios (Nagios is #12 of 13 at 0%).

- Datadog: first choice in 17 of those 80
- Zabbix: first choice in 9 of those 80
- New Relic: first choice in 8 of those 80
- ManageEngine OpManager: first choice in 4 of those 80
- Site24x7: first choice in 4 of those 80
- Grafana: first choice in 2 of those 80
- Paessler PRTG: first choice in 2 of those 80
- Prometheus: first choice in 2 of those 80

**Enterprise**: 80 of 84 answers did not name Nagios (Nagios is #14 of 14 at 0%).

- Datadog: first choice in 28 of those 80
- Dynatrace: first choice in 15 of those 80
- Netdata: first choice in 7 of those 80
- New Relic: first choice in 3 of those 80
- Grafana: first choice in 2 of those 80
- SigNoz: first choice in 2 of those 80
- Grafana stack with Loki/Tempo: first choice in 1 of those 80
- Logz.io: first choice in 1 of those 80

Published under CC BY 4.0. The output is the models' output; nothing here is a recommendation by the index.