Network utilities and PRTG

Continual monitoring beats the need to constantly
search anew

  • Non-stop monitoring
  • Ping, SNMP, DNS, packet sniffing
  • Built-in alarm
  • Custom licenses
  • Free trial

Free Download
  • Unlimited version of PRTG for 30 days
  • After 30 days, PRTG reverts to a free version
  • Or, you can upgrade to a paid license anytime

Different utilities for different components

Ping to check the status of your network connection

Ping to check the status of your network connection


Nslookup for DNS servers

Nslookup for DNS servers


Traceroute for data packets

Traceroute for data packets

PRTG keeps a constant eye on your network

Non-stop monitoring of all devices

Non-stop monitoring of all devices


Built-in alarm

Built-in alarm


Reports included

Reports included

Your network at a glance: 5 sensors for getting started


iWhat is a sensor?

In PRTG, “Sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, e.g. the traffic of a switch port, the CPU load of a server, the free space of a disk drive. On average you need about 5-10 sensors per device or one sensor per switch port.

View video (3:26 min.)


Ping Sensor

Ping Sensor

The Ping Sensor checks the reachability of all the devices in your network. During the installation of PRTG, your local range of IP addresses gets pinged and basic initial monitoring is configured automatically. Learn more about ping monitoring here.

SNMP Sensor

SNMP sensors

Our SNMP sensors let you quickly identify which applications and servers are using the most bandwidth. PRTG comes with preconfigured SNMP sensors for a variety of manufacturers, including Cisco, Dell, and HP. Discover more on SNMP monitoring here.

Packet Sniffer Sensor

Packet Sniffer Sensor

The Packet Sniffer Sensor lets you perform in-depth network traffic monitoring. You can filter traffic using a number of different criteria, including data type, IP address, and protocol. As a result, you'll uncover usage trends and other valuable information regarding your network. Find out more about packet sniffing here.

NetFlow sensors

NetFlow sensors

NetFlow sensors monitor Cisco devices such as switches and routers. PRTG also comes with other Flow sensors (sFlow, jFlow) and IPFIX.

DNS Sensor

DNS Sensor

The DNS Sensor monitors and indicates the response times of your DNS servers. If a DNS server is non-responsive or malfunctioning, this sensor will pick up on it automatically and display an alarm message.   

A quick glimpse into the network troubleshooting utility PRTG

Network test utility: 5 advantages of PRTG

Stay up to date

Stay up to date

With continuous monitoring, you’ll stay up-to-date on all the goings-on in your network. At the slightest error, PRTG will immediately send you an alert (if you so wish). You can therefore go about completing other important tasks knowing your network is in the very best of hands.

React promptly

React promptly

PRTG comes with a customizable alarm/notification system. It lets you choose the devices and values for which notifications should be sent. There are many ways to receive alerts, including email, push notification, and SMS.

Analyze your network

Analyze your network

Historical data lets you analyze your network in detail. You can quickly tell if capacity has risen or the latency is too high and upgrade your hardware to avoid problems in the future. And thanks to easy-to-read PRTG reports, you’ll have no trouble keeping your coworkers and higher-ups in the know.

Free trial version

Free trial version

The first 100 sensors in PRTG are free and never expire. This enables you to get a good feel for PRTG and decide if it’s the right tool for you - with no strings attached. What’s more, with the trial version you get unlimited access to all PRTG sensors for 30 full days.

Custom license upgrades

Custom license upgrades

PRTG comes with a number of different licenses. Each license includes sensors, the alarm feature, reports, and technical support. The only difference lies in the number of sensors. Upgrading is quick and easy, and does not require a new installation.

200,000 system administrators worldwide
trust our software. Every day.

We have compiled some reviews for you.


  • Unlimited version of PRTG for 30 days
  • After 30 days, PRTG reverts to a free version
  • Or, you can upgrade to a paid license anytime

“The greatest advantage of PRTG? You get to rest easy.“

Steffen Ille, Bauhaus-University of Weimar, Germany

Keep a constant eye on your network –
even while on the go

PRTG can be started within minutes and it's compatible with many mobile devices.


PRTG comes with all the features you need, plus more your IT infrastructure won't want to live without.


PRTG monitors these vendors and applications, and more, in one view!


Hey Greg, can you give me an example of how PRTG works with network utilities?

“Ping sensors are probably the most important elements of any network monitoring. They must be set up correctly, particularly with regard to your connections. When monitoring a virtual machine, it makes sense to place the ping in connection to its host. If the host crashes, you will therefore not be notified for each and every virtual machine connected to it. Furthermore, ping sensors can be good indicators of whether a network path to a host or the Internet functions properly, especially in high-availability or failover scenarios.”

Greg Campion is a system administrator at PAESSLER AG

Network utilities in various systems

Mac network utility

Mac network utility

The Mac network utility is called “Network Utility.” This program displays information on your network connections, including the IP address, the speed and number of sent and received data packets, and the number of transmission errors. Network Utility also comes with Netstat, Ping, Lookup, Traceroute, Whois, Finger, and Portscan.

i Ping is a command-line utility, available on virtually any operating system with network connectivity, that acts as a test to see if a networked device is reachable. The ping command sends a request over the network to a specific device. A successful ping results in a response from the computer that was pinged back to the originating computer. Read more ...

Windows network utility

Windows network utility

Windows also comes with network programs. These programs vary depending on the Windows version you are using. Here too you can run a ping, test connections and ports, or use nslookup to check your DNS information.

Agent-based vs. agentless network monitoring


Agent-based monitoring

Those looking to set up network monitoring have the choice between two types of tools: agent-based and agentless. With agent-based tools, software agents are installed on each piece of hardware that needs monitoring, allowing for in-depth analysis. These tools can be quite costly, however, especially in larger networks.

PRTG is agentless software

PRTG is an agentless software

PRTG is based on an agentless process. The network is monitored centrally from one main server. Software does not need to be installed on the target computers. With PRTG, an agentless architecture is even possible for distributed networks. In such a case, remote probes are used (see “Distributed networks").

iA server is a computer or system that provides resources, data, services, or programs to other computers, known as clients, over a network. In theory, whenever computers share resources with client machines they are considered servers. There are many types of servers, including web servers, mail servers, and virtual servers. Read more ...

Distributed networks: Network utility software PRTG is also a good choice

Distributed networks: A lot of work for your IT department

Distributed networks: A lot of work for your IT department

Many companies have several sites or branches which are managed centrally by one IT department. Among other things, malfunctions can cause a lot of work for administrators, who must travel to the particular site to clarify the problem.

Advantage of PRTG: Convenient and efficient

Advantage of PRTG: Convenient and efficient

With your PRTG license, you can even monitor geographically distributed networks. This works via remote probes, which are included at no extra cost. These probes are set up in the remote network and remain in constant contact with the PRTG Core Server.

Decentralized monitoring: Case study

Decentralized monitoring: Case study

The Swiss company Bystronic monitors its worldwide network with PRTG. The company’s headquarters are located in Switzerland. It has three further production and development sites in Germany and China, and sales and service branches in over 30 different countries. Bystronic uses PRTG (and nothing else) to centrally monitor its entire network.
To the case study (German)

White paper on remote probes

White paper on remote probes

In this free white paper, you can read more about distributed network monitoring. You’ll also learn exactly how remote probes work. For example: did you know a remote probe can also be placed behind a firewall? The probe monitors your network from “the inside,” and sends information to the PRTG server via an encrypted connection. Find out more in the white paper.

Problem diagnosis tools: The limits of PRTG


What PRTG can do

PRTG keeps a constant eye on your network. SNMP sensors show you how much bandwidth is being used by your devices and applications, while Flow sensors and packet sniffing let you take a closer look at data packets. 

What PRTG cannot do

If you wish to analyze the content of individual data packets, then you’ll need a special diagnostic tool. There are many such tools on the market. PRTG is purely a monitoring tool.


Investing in network monitoring:
PRTG pays for itself in no time

The costs for a one-year PRTG license usually pay for themselves within a few weeks.

PRTG improves the reliability of your
IT infrastructure

PRTG improves the reliability of your IT infrastructure

PRTG saves network
management costs

PRTG saves network management costs

PRTG saves time spent on
network management

PRTG saves time spent on network management

You want to know more about other network-related monitoring topics?

Here you find everything about...

LAN Monitoring with PRTG

Monitoring latency and jitter 

PRTG as Packet-capture-tool

Award winning solution

We work hard on making our software as powerful and easy-to-use
as possible for our customers each and every day.
Of course it makes us proud when we get awards for that.



PRTG: The swiss army knife for sys admins

Adapt PRTG individually and dynamically to your needs relying on a strong API:

  • HTTP API: Access monitoring data and manipulate monitoring objects using HTTP requests
  • Custom Sensors: Create your own sensors for customized monitoring
  • Custom Notifications: Create your own notifications to send alarms to external systems
  • New REST API Sensor: Monitor almost everything that provides XML or JSON

Over 95% of our customers recommend PRTG


Paessler AG worldwide trialled PRTG in over 600 IT departments.
The aim was to tune the network monitoring software closer to the needs of the administrators.
The result of the survey: over 95% of the participants would recommend PRTG - or already had.

Recommend PRTG


More on network monitoring


Router monitoring

With PRTG, you can monitor the bandwidth usage, network activities, and error messages of your routers. To do so, choose from several preconfigured sensors which work with a variety of different manufacturers, including Cisco, Dell, and HP.

Server monitoring

PRTG monitors all your servers: DNS, mail, MySQL, and many more. You therefore get a monitoring tool for all the main hardware in your network. And you can configure the PRTG alarm system to be promptly notified in the event that this hardware malfunctions.

Port monitoring

PRTG monitors open and closed ports. This will help you improve the security of your network. Often ports are only used temporarily and then forgotten. But open ports represent a danger, as they can be gateways for Trojan horses. 

German quality engineering




Free Download
  • Unlimited version of PRTG for 30 days
  • After 30 days, PRTG reverts to a free version
  • Or, you can upgrade to a paid license anytime

Most administrators want to test a tool for free before deciding to make an investment.

The many advantages of PRTG:

1. Free trial version: Take the time to explore PRTG so you can determine if it satisfies your needs and meets your expectations. Once the trial is over, it’s easy to upgrade your already configured version of PRTG, which means you’re much less likely to make an incorrect purchase.

2. One tool, one overview: Administrators often use a variety of monitoring solutions for their network or for the individual components of their infrastructure. But using several different tools every time you want to create an overview costs time and energy. PRTG is an “all-in-one” solution. Our dashboard and app provide a comprehensive overview, whenever you want it.

3. Quick customer support: Got a question? Stuck on a problem and need a hand? PRTG is backed by a dedicated development and support team. We do our utmost to answer every customer inquiry within 24 hours (on business days). Browse all our support topics here.

Configure your PRTG today. The trial version is free of charge. Save time, worry, and money with our monitoring tool designed for your network and entire infrastructure.



Network Monitoring Software - Version (October 10th, 2019)


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Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

Supported Vendors & Applications