Award-winning network monitoring platform
Try Checkmk free for 30 days

Reduce downtime in your network and uncover hidden issues affecting bandwidth. Effectively monitor your entire hybrid IT infrastructure and identify problematic trends with powerful, customizable dashboards.

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G2 Top 50 IT Infrastructure Products
G2 IT Infrastructure Monitoring Leader
G2 High Performer in IT Infrastructure Monitoring
G2 Best Relationship
G2 Most Implementable Software
G2 Best Results

Ensure peak network infrastructure performance

Illustration: Comprehensive IT Monitoring
Monitor everything

Monitor your hybrid IT infrastructure out-of-the-box with our leading library of more than 2,000 vendor-maintained monitoring plug-ins

Illustration: Automated IT Monitoring
Highly automated

With its auto-discovery, auto-configuration via a REST API, and built-in agent management, Checkmk takes manual work off your hands

Illustration: Scalable IT Monitoring
Massively scalable

Monitor hundreds of thousands of hosts and millions of services across the globe, thanks to a high-performance distributed architecture

Illustration: Easily Extensible IT Monitoring
Extensible

Customize or extend the open source code of Checkmk. Use the Check-API to write your own monitoring plug-ins or extend existing ones

Customers

  • Adobe
  • Cisco
  • Fujitsu
  • Siemens
  • Volkswagen
  • University of Texas
  • Zalando
  • Fitbit
  • Intesa
  • HP

One of the standout features of Checkmk that I appreciate the most is its remarkable flexibility. As a network monitoring solution, Checkmk excels at adapting to different environments and requirements, making it a versatile tool for IT operations of all sizes.

Try an easy to set-up, holistic network monitoring software

Your whole business depends on an efficiently-functioning network infrastructure. However, even networks in small companies can get hugely complicated over time and it is easy to lose the overview and have difficulty keeping an eye on everything. A good network monitoring software can help to handle these issues.

Checkmk, as a network monitoring tool, can help you quickly monitor your entire network, and it doesn’t cover only the major devices, but also a broad range of vendors — even those outside the mainstream. And this all without complicated configurations and endless alarms. With a few clicks, you will be able with this network monitoring tool to monitor all your network devices, e.g.:

  • Switches & Routers — Monitor packet rates, error rates, the state and bandwidth of ports, error rates, CPU utilization, fans, power supply, temperature and more. Supported devices for network monitoring include, e.g. Alcatel-Lucent, Cisco, Brocade, Dell, Enterasys, Extreme Networks, Huawei, Intel, Juniper, TP-Link.
  • Wireless — Also monitor your wireless networks, e.g. state of access points, signal strength and connected devices for Aerohive, Aruba Networks, CBL, MikroTik, Netgear, Fritz!Box, etc., devices.
  • Firewalls — Ensure the security of your network by monitoring the health, VPN tunnel state, high availability state and more of your BlueCat, Checkpoint, F5, FireEye, FortiGate, IBM, Palo Alto Networks, etc., devices.

Ultra efficient network monitoring

Checkmk uses a rules-based concept for configuring your network monitoring. This becomes especially powerful when monitoring a large number of similar devices, in contrast to a template-based approach, in which you need to configure each 'sensor'.

With just a couple of rules you can configure your entire network monitoring, e.g. monitoring only the error rate for access ports. Routers and switches can have several hundred SNMP messages – it is important to monitor only what really matters. Checkmk knows what data matters, and filters the data for you so that you get to see the data you actually need in your network monitoring.

Checkmk provides you a topology of your network in its network monitoring
Topology of a network. Network monitoring

For small networks and ISPs

  • Powerful analysis tools
  • Network topology maps and insightful graphs
  • Insights into switch port usage

Quickly identify the roots of issues with the powerful graphing and network topology maps of Checkmk. Learn which of your ports are actually in use with the switch port statistics. With Checkmk you monitor small networks and large environments - our monitoring solution is flexible and scalable.

Understanding switch port usage

Have you ever stood in front of a switch and wondered which ports are actually being used, and which not, or that someone hasn't simply removed a cable? Have you ever unplugged your CEO from the internet because the port looked as if it was not in use, but he was in fact just on a business trip?

Checkmk combines real-time data and historic data in its network monitoring to understand which of a switch's ports are in use. With the switch port statistics feature, you can see immediately which port is up/down/free, the speed, whether it is currently being used, and the last time when it was in use.

A good network monitoring software provides you an overview of your network ports
Time series graph showing the bandwidth of a uplink port in Checkmk

Avoiding bottlenecks with bandwidth network monitoring

Checkmk not only monitors all network interfaces in an IT infrastructure but also the bandwidth consumption at each port. Bandwidth network monitoring with Checkmk enables you to:

  • Monitor all ports and the bandwidth usage for each port.
  • Set thresholds for individual ports to receive alerts when bandwidth consumption is high.
  • Quickly identify bandwidth-related peaks and patterns with powerful time series graphs.
  • Set the assumed input and output speed on Internet and WAN ports for improved alerting.
  • Measure network and internet performance by integrating Speedtest or iperf into Checkmk via plugins.

Network flow monitoring

In addition to comprehensive network monitoring, Checkmk starting from version 2.0 optionally supports monitoring of network flows. Checkmk is able to integrate network flow data provided by ntop and allows you to get an even more detailed monitoring of your network. You can analyze your network traffic in-depth without having to leave the Checkmk interface.

By analyzing flow data, you can learn which hosts, applications, or protocols are communicating with each other. This allows you to break down network usage per host, destination address, protocol, or application to see what the top talkers and top listeners are on your network. In addition, network flow monitoring helps you detect bottlenecks or anomalies in your network infrastructure.

With Checkmk you have all the data in your Checkmk main dashboard. Checkmk gets all the information from ntop. Furthermore, you can view all flow information and analyze all flow-specific alarms via the alert dashboard. In addition, the flow data provides you with supplementary information on each host, such as traffic packets, ports, peers and applications.

Identify Top Talkers and Top Listeners in your network
Checkmk as network monitoring tool provides you also insights about your VPN status

VPN and remote workplace monitoring

Avoid capacity bottlenecks, bandwidth and performance issues, or configuration errors from slowing down your VPN and remote workplace architecture. This is the only way to ensure that your employees can easily access the tools and applications they need from home or wherever they work.

With Checkmk as your network monitoring software, you are able to monitor the status and the number of your active VPN tunnels and the number of bytes being transferred via VPN, so that you can detect problems early and guarantee secure remote access to your company infrastructure at any time.

Prevent your VPN gateway from becoming a bottleneck in your remote architecture by easily monitoring device CPU usage with Checkmk. In this way Checkmk helps you to react to possible bottlenecks at an early stage.

With remote workplaces, it is useful to monitor several parameters simultaneously to ensure smooth operation. Here, too, you should always keep an eye on the performance utilization of your gateway. Checkmk also helps you to keep an eye on the resource capacities of your virtual platform. Only if sufficient CPU, RAM or Storage IO are available, can a smooth operation and a possible scaling of the virtual workstations be guaranteed.

Monitor with a glance. Resolve with a click

Dynamic dashboards

Flexible, real-time dashboards

Powerful visualizations

Interactive and dynamic visualization options

Infrastructure monitoring

Hosts and Services overviews that enable fast drill downs

Log and event monitoring

Efficient processing and analysis of logs

Availability and SLA reporting

Precise availability and SLA fulfillment reporting

Notifications and alerts

Advanced notification system with many integrations

Simple, flexible configuration

Modern, efficient and automatic configuration system

Deploy flexibly in every environment

Linux server
Docker container
Virtual appliance
Physical appliance

Explore all installation options

Frequently asked questions about the trial

Trials of Checkmk are now easier than ever - simply download the latest build of the Checkmk Cloud Edition and start using it. The Checkmk Cloud Edition includes all features of the Enterprise Edition. Features that are exclusive to the Cloud Edition (e.g., cloud dashboards, push agent, etc.) are marked as such in the GUI, so you won’t risk testing anything that won’t be available later on.

The trial expires after 30 days, at which point your site can either be licensed as a paid subscription, or you can continue using it for free for as long as you want. In the free state, your site will be limited to 750 services and one site.

To purchase a Checkmk license, you can either purchase online or request a quote.

Windows is not a supported operating system for Checkmk server. Nevertheless, Checkmk is available as an OVA (Open Virtualization Appliance), which can be loaded and launched on your desktop hypervisor for Windows like Proxmox and VMvare vSphere. The Checkmk virtual appliance contains a pre-installed Linux operating system, firmware, and a graphical interface. The web GUI allows you to configure the operating system, the appliance, and Checkmk without needing to use the Linux command line. More information about Checkmk virtual appliance deployments steps you will find in our comprehensive installation guide.

The easiest way to get started with a POC is to simply install the Cloud Edition, create a new site and use the 30-day trial period. If you need more than 30 days to build your POC, please contact our sales team who will be able to issue a POC license.

Ready to explore the Checkmk monitoring platform?

No credit card required. No upfront commitment. Unlimited free use for 30 days.

Simply download Checkmk and start monitoring. After the trial period, you can continue monitoring up to 750 services at no cost, or choose a pricing plan with monthly payments based solely on the number of services you need to monitor.