# Checkmk vs Nagios

| Attribute | Checkmk | Nagios |
|---|---|---|
| **Vioscale score** | 61.6 (42% (low)) | 100 (17% (low)) |
| deployment.options | `{"cloud":true,"on_prem":true,"air_gapped":true,"self_hosted":true}` | `{"on_prem":true,"self_hosted":true}` |
| description.long | A comprehensive observability solution that monitors infrastructure, applications, and synthetic endpoints across hybrid and cloud environments, with over 2000 pre-built integrations and automated discovery. | A free, community-supported monitoring system that helps organizations detect infrastructure issues and prevent downtime by monitoring servers, networks, applications, and services. It offers a modular plugin architecture for extensibility and includes optional web-based dashboards and visualization tools. |
| features.capabilities | - | `{"apm":true,"logs":true,"hosting":"both","metrics":true,"on_call":true,"alerting":true,"dashboards":true,"open_source":true,"snmp_polling":true,"netflow_sflow_ipfix":true,"cloud_vpc_monitoring":true,"auto_discovery_topology":true,"config_backup_change_mgmt":true}` |
| integrations.count | 2,000 | 4,000 |
| integrations.list | `[{"name":"Slack"},{"name":"Mattermost"},{"name":"ServiceNow"},{"name":"Jira"},{"name":"Kubernetes"},{"name":"OpenShift"},{"name":"Prometheus"},{"name":"Redis"},{"name":"Couchbase"},{"name":"RabbitMQ"},{"name":"FortiGate"},{"name":"Pulse Secure"},{"name":"Cisco ASA"},{"name":"Cisco Webex"},{"name":"AWS"},{"name":"Azure"},{"name":"Google Cloud"},{"name":"Salesforce"},{"name":"VMware"}]` | `[{"name":"Grafana"},{"name":"InfluxDB"},{"name":"Prometheus"},{"name":"Apache"},{"name":"Nginx"},{"name":"IIS"},{"name":"Tomcat"},{"name":"MySQL"},{"name":"PostgreSQL"},{"name":"Oracle"},{"name":"SQL Server"},{"name":"MongoDB"},{"name":"LDAP"},{"name":"Active Directory"},{"name":"JBoss"},{"name":"WebLogic"},{"name":"Citrix"},{"name":"PagerDuty"},{"name":"Slack"},{"name":"ServiceNow"},{"name":"DB2"},{"name":"EC2"},{"name":"VMware"},{"name":"Hyper-V"},{"name":"MSSQL"},{"name":"IPMI"}]` |
| market.availability | `{"hqCountry":"DE","primaryMarkets":["DE","US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true,"linux":true}` | `{"cli":true,"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free & Open Source","summary":"Free open source tier","features":["2000+ pre-built integrations","Auto-discovery","SNMP monitoring","Event console"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"EUR"}],"description":"Free and open source monitoring with limited capacity","contactSales":false,"includedLimits":{"sites":"1","services":"750"}},{"free":false,"name":"Pro / Ultimate (Self-Hosted)","summary":"€190/month billed annually","features":["2000+ integrations","Advanced cloud integrations","Kubernetes monitoring","REST API","Automated discovery","Distributed monitoring support"],"components":[{"kind":"fixed","amount":190,"period":"month","currency":"EUR"}],"description":"Commercial self-hosted editions for hybrid and cloud-native infrastructure monitoring","contactSales":false},{"free":false,"name":"Cloud (SaaS)","summary":"Managed cloud platform with service-based pricing","features":["2000+ integrations","Advanced cloud integrations","Kubernetes monitoring","REST API","Built-in cloud dashboards","No synthetic monitoring add-on"],"description":"Fully managed SaaS edition hosted on AWS (Frankfurt EU or Northern Virginia US)","contactSales":false,"includedLimits":{"services":"up to 50000"}}],"addOns":[{"name":"Synthetic Monitoring"},{"name":"Additional Custom Metrics"}],"summary":"Free open source tier; paid subscriptions from €190/month billed annually, priced by services, metrics, or synthetic tests monitored","currency":"EUR","freeTier":true,"sourceUrl":"https://checkmk.com/pricing","retrievedAt":"2026-08-19T14:40:09.121Z","freeTrialDays":30,"startingPrice":{"amount":190,"period":"month","currency":"EUR"},"billingPeriods":["month","year"]}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://www.nagios.org","retrievedAt":"2026-08-16T21:32:30.252Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":190,"currency":"EUR"}` | - |
| pricing.transparent | yes | - |
| reliability.sla_pct | 99.5 | - |
| security.gdpr | yes | - |

## Capabilities (Network Monitoring)

| Capability | Checkmk | Nagios |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Snmp polling | - | ✓ |
| Netflow sflow ipfix | - | ✓ |
| Auto discovery topology | - | ✓ |
| Wifi monitoring | - | - |
| Sdwan monitoring | - | - |
| Synthetic active monitoring | - | - |
| Config backup change mgmt | - | ✓ |
| Cloud VPC monitoring | - | ✓ |
| Multi tenant msp | - | - |
| Anomaly detection | - | - |
| Open source | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T15:05:31.822Z. "-" = undocumented, not absent.*