Custom alerts and data visualization let you quickly identify and prevent network availability and performance issues.
With Paessler PRTG, many customers reduce downtime to 5 minutes or less per year with 99.999% availability of their website, servers, and databases. Here’s a breakdown of the potential impact of PRTG on your business:
*According to a study by Techconsult, one hour of downtime costs medium-sized companies between €20,000 and €40,000, or between $21,000 and $42,000. The companies in the study had an average of four crashes per year, with each crash lasting an average of 3.8 hours. The total costs therefore amount to €320,000 to €640,000 per year (up to $700,000) for medium-sized companies with 200 to 5,000 employees.
The email-server is down, the telephone won't stop ringing. Everyone is calling, although the downtime has lasted for six minutes only. But the stress and short-term work loss are immense. Calculated over the course of a year, this costs a huge amount of money. That's where PRTG comes in: our monitoring software paves the way to high availability.
Diagnose network issues by continuously tracking the availability of your servers, applications, webpages, IT services, operating systems, and more. Show the reachability of all your network’s components and other key metrics in real time. Visualize monitoring data in clear graphs and dashboards to identify problems more easily. Gain the overview you need to troubleshoot costly downtime.
Device tree view of the complete monitoring setup
Custom PRTG dashboard for keeping an eye on the entire IT infrastructure
Live traffic data graph in PRTG
“All-around winning
network monitor”
“The real beauty of PRTG is the endless possibilities it offers”
“PRTG Network Monitor
is very hard to beat”
PRTG comes with more than 250 native sensor types for monitoring your entire on-premises, cloud, and hybrid cloud environment out of the box. Check out some examples below!
The Ping v2 sensor sends an Internet Control Message Protocol (ICMP) echo request ("ping") from the probe system to the parent device to monitor its availability. It can show the following:
• Response time
• Packet loss
• Target status
• Minimum and maximum ping time
The Cloud Ping v2 sensor monitors the Transmission Control Protocol (TCP) ping times to its parent device from different locations worldwide (Asia Pacific: Singapore, Asia Pacific: Sydney, Europe: Ireland, US East: Northern Virginia, US West: Northern California) via the PRTG Cloud. It can show the following:
The SNMP Uptime v2 sensor monitors the uptime of a device. It can show the following:
The Windows System Uptime sensor monitors the uptime of a Windows system via Windows Management Instrumentation (WMI) or Windows performance counters. It can show the following:
See the PRTG Manual for a list of all available sensor types.
Custom alerts and data visualization let you quickly identify and prevent network availability and performance issues.
PRTG is set up in a matter of minutes and can be used on a wide variety of mobile devices.
“Great interface, intuitive, full REST support. custom scripts, rest sensors add extra value. We have been using PRTG for 10 years now in multiple environments and use cases. it has by far the best interface and very easy to setup without prior experience.”
Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.
Combining PRTG’s broad monitoring feature set with IP Fabric’s automated network assurance creates a new level of network visibility and reliability.
Siemon and Paessler bring together intelligent building technology and advanced monitoring and make your vision of intelligent buildings and data centers become reality.
UVexplorer integrates tightly with PRTG to bring fast and accurate network discovery, detailed device inventory, and automatic network mapping to the PRTG platform.
Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.
Network Monitoring Software – Version 26.1.116.1532 (February 9th, 2026)
Download for Windows and cloud-based version PRTG Hosted Monitor available
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Choose the PRTG Network Monitor subscription that's best for you
Availability monitoring is the process of continuously observing and measuring the uptime and performance of a system, network, or service to ensure it remains accessible to users. This involves tracking metrics such as response times, downtime occurrences, and overall reliability. Availability monitoring plays a crucial role in maintaining service level agreements (SLAs) and meeting customer expectations for reliable access to digital resources.
Availability monitoring is important for several reasons:
Yes. PRTG is proprietary monitoring software that can monitor your entire IT infrastructure including network traffic, applications, bandwidth, cloud services, databases, virtual environments, availability & uptime, ports, IP addresses, hardware status, network security, web services, and much more.
PRTG is proprietary monitoring software that can monitor your entire IT infrastructure including network traffic, applications, bandwidth, cloud services, databases, virtual environments, availability & uptime, ports, IP addresses, hardware status, network security, web services, and much more.
With PRTG, setting up a simple failover cluster is quick and easy. Configure one PRTG server on two different computers, each with the same license key. Decide which of your PRTG servers is to be the master node in the cluster, and follow the steps in our how-to guide.
In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, for example the traffic of a switch port, the CPU load of a server, or the free space on a disk drive. On average, you need about 5-10 sensors per device or one sensor per switch port.
Paessler conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins. The result of the survey: over 95% of the participants would recommend PRTG – or already have.
Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.
Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.
Everyone has different monitoring needs. That’s why we let you try PRTG for free.
