Paessler PRTG

Network device scanner PRTG

Keep a constant eye on all devices in your network


  • Quickly pinpoint outdated or vulnerable device software versions
  • Easily generate a comprehensive inventory of all network devices
  • Detect rogue devices connecting to the network

Our users give top ratings for monitoring with Paessler PRTG



PRTG makes tracking network usage easy

Custom alerts and data visualizations make it easy to monitor, identify, and prevent low bandwidth, packet loss, latency, and other network performance issues.










Power up your all-seeing network eye PRTG and scan your network’s devices

For sysadmins and IT leaders, one of the truths you must embrace is that you don’t know all your devices. Even small networks are connected to scores of end devices; the bigger and more dynamic your IT infrastructure, the harder it is to watch everything. Paessler PRTG cuts through the noise and gives you instant, automatic visibility to your entire network.

Make device inventory management a breeze

New devices come online, old devices go offline, and connections can be reconfigured on a daily, weekly, or monthly basis. Keeping track of the ins and outs can be a full-time task.

PRTG’s automatic network discovery takes the complexity out of inventory management, automatically adding new devices to your monitoring.


Set scanning intervals & have it your way

Depending on the complexity and size of your network, you may need to scan it monthly or even weekly to identify changes.

Our network device scanner PRTG allows you to set the intervals between scans to keep a constant eye on your network’s evolution. After the scan, you can tweak the list, group devices, or create easy-to-read network maps.

Detect vulnerabilities & unauthorized access

Network security is always a concern, no matter the size of an organization. PRTG is a team player in your security.

It detects outdated software vulnerabilities and unwanted devices with unauthorized access, such as private computers or cell phones. This is particularly important in environments where sensitive data is handled.

Keep your network healthy & devices running

Monitoring the health and status of your devices is a crucial part of network device management. PRTG makes proactive management easy with real-time monitoring and alerts.

The network device scanning software continuously gathers operational data from each device on the network, including memory and CPU usage, network traffic volume, and more.

Quickly identify failures and redundancies

Effective network management means ensuring your network is resilient, efficient, and capable of meeting user demands. PRTG helps you identify over- or underutilized resources, at-risk components, or failed devices.

With this information, sysadmins can better guide their teams in resource allocation, load balancing, root cause analysis, and preventative maintenance.

Take strategic network planning to the next level

Knowing what’s going on in your network at any given point makes strategic planning that much easier. PRTG gives you that information to make informed decisions about where to add capacity or scale back.

Know where to invest for strategic upgrades, expansions, or enhancements with real-time and historical data.








What network device scanning looks like in PRTG

Diagnose network issues by continuously monitoring your network devices. Show performance data, health, and availability, and easily detect new devices in real time. Visualize data in graphic maps & dashboards to identify problems more easily. Gain the visibility you need to troubleshoot and manage your entire network.


Start network device scanning with PRTG and see how it can make your network more reliable and your job easier.



IT experts agree: Paessler PRTG is a great solution for IT infrastructure monitoring


“All-around winning
network monitor”

logo it brief

“The real beauty of PRTG is the endless possibilities it offers”


“PRTG Network Monitor
is very hard to beat”






5 reasons to choose PRTG as your network device scanning tool

User-friendly dashboards

PRTG provides all your data from a single, unified dashboard. Drill down to see your network devices in neatly arranged lists or even further for individual device information.


Support for multiple protocols

PRTG supports a wide range of protocols, including SNMP, WMI, SSH, HTTP, and more. This makes network monitoring easier across different systems and devices.


Comprehensive network reports

PRTG provides in-depth reporting capabilities, which can be customized and automated. These reports help you analyze trends and performance over time.


Monitoring of multiple locations

PRTG supports distributed monitoring, allowing you to monitor several geographic locations from a single interface.


Custom alerts & notifications

Get alerts how you want them. PRTG can send alerts via email, SMS, or push notifications, so you receive immediate notifications on any issue, anywhere and anytime.


Your network device scanner at a glance – even on the go

Set up PRTG in minutes and use it on almost any mobile device.


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 in one view!


vendors vm ware



Easily find the source of the problem with our PRTG network device scanner

Real-time alerts and custom notifications make it easy to solve issues with the health of your network devices.



PRTG is compatible with all major vendors, products, and systems

vendors applications blue


Create innovative solutions with Paessler’s partners

Partnering with innovative vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.


baramundi and PRTG create a secure, reliable and powerful IT infrastructure where you have everything under control - from the traffic in your firewall to the configuration of your clients.

Read more

INSYS icom

With the combination of PRTG and Insys, the monitoring specialist Paessler and the industrial gateway manufacturer INSYS icom offer a practical possibility to merge IT and OT.

Read more


Siemon and Paessler bring together intelligent building technology and advanced monitoring and make your vision of intelligent buildings and data centers become reality.

Read more



“Excellent tool for detailed monitoring. Alarms and notifications work greatly. Equipment addition is straight forward and server initial setup is very easy. ...feel safe to purchase it if you intend to monitor a large networking landscape.”

Infrastructure and Operations Engineer in the Communications Industry, firm size 10B - 30B USD

Read the entire review at Gartner Peer Insights 


PRTG makes scanning your network devices easy

Custom alerts and data visualizations make it easy to monitor, identify, and prevent low bandwidth, packet loss, latency, and other network performance issues.


 Network device scanner: FAQ


What is network device scanning?

Network device scanning automatically identifies all the devices connected to a network. This includes their attributes, such as IP addresses, device types, operating systems, versions, and configurations.

Why should I use a network device scanner?

Scanning is important for keeping an up-to-date view of the network’s infrastructure. Among other tasks, network device scanning helps IT teams:

  • Build automatic network inventories
  • Efficiently plan network upgraded
  • Increase security by detecting unauthorized devices
  • Optimize network performance
  • Lower network expenses

How often should I conduct network scans?

How often depends very much on your organization’s size, the complexity of the network, and your industry’s regulations. Typically, at least once a day is recommended.

What types of devices can be detected in a network scan?

Network scans can detect any device that connects to a network as long as the device speaks a protocol that the used network device scanning tools support, including computers, servers, printers, switches, routers, and IoT devices.

What makes PRTG different from other network scanning tools?

PRTG  as a network device scanner stands out for many reasons. Here are the top three:

  • PRTG is well-known for its user-friendly interface
  • Because of its sensor-based approach, it’s a leading provider of comprehensive network monitoring
  • PRTG is highly customizable
  • PRTG can scale with your organization’s network
  • PRTG not only scans your LAN, but also your virtual devices, as well as your cloud environment

What is a sensor in PRTG?

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.


PRTG the multi-tool

PRTG: The multi-tool for sysadmins

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

  • HTTP API: Access monitoring data and manipulate monitoring objects via HTTP requests
  • Custom sensors: Create your own PRTG sensors for customized monitoring
  • Custom notifications: Create your own notifications and send action triggers to external systems
  • REST Custom sensor: Monitor almost everything that provides data in XML or JSON format


We asked: would you recommend PRTG?
Over 95% of our customers say yes!


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.


Recommend PRTG


Still not convinced?


More than 500,000
sysadmins love PRTG

Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.


Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.


Try Paessler PRTG
for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free.



Paessler PRTG 

Start network device scanning with PRTG and see how it can make your network more reliable and your job easier.




Network Monitoring Software - Version (June 26th, 2024)


Download for Windows and cloud-based version PRTG Hosted Monitor available


English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese


Up to 100 sensors for free (Price List)

Unified Monitoring

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

Supported Vendors & Applications

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