Free Network Diagnostics and Analysis Tool PRTG
Speed up troubleshooting your network infrastructure
- Analyze all network devices, including servers, routers, and firewalls, with one tool
- Get alerted proactively via custom notifications – at the first sign of a problem
- Use historical data reports for detailed root cause analysis
Our users give top ratings for monitoring with Paessler PRTG
PRTG network analyzer: What you’ll find on this page
PRTG makes spotting and troubleshooting network issues as easy as it gets
Custom alerts and end-to-end data visualization let you quickly identify and prevent downtime, potential security threats, and network performance issues.
Goodbye needles. Goodbye haystacks.
Nobody enjoys working out what's causing network issues.
It can take hours. If you're lucky.
More likely, you might be looking at several days' worth of combing through logs to pinpoint what's wrong…
Powerful, accurate, and easy to implement, Paessler PRTG network troubleshooting tools take the pain out of identifying and fixing network problems, making it a simple and straightforward process.
Our network diagnostics software continuously monitors your network and homes in on any issues, so you can troubleshoot them quickly and bring your network back to 100% efficiency in no time.
PRTG network analysis & monitoring tool: From “No!” to “Go!” in minutes, not hours
How PRTG defines sensors
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.
Enjoy comprehensive monitoring
No network's too large or complex for PRTG. With 250+ preconfigured sensors and an intuitive, highly customizable dashboard, you can spot trouble and work out whether it's a hardware, software, or system issue with a few clicks.
Analyze
historical data
Go back as far as you need to, and home in on when the problem started. You can also generate custom reports you can use to get your higher-ups up to speed with the current state of your infrastructure… and let them know it's time to upgrade.
Receive automatic alerts
Prevention's better than cure. PRTG's configurable alerts notify you at the first sign of a possible problem, so you can take prompt action (and look good with your colleagues and your boss). Choose from various notification methods like email, SMS, or push notification.
Get outstanding support
Paessler's friendly support team is always on hand to help. We answer most queries within 24 hours. And our products come with extensive, easy-to-understand documentation, including the Paessler Knowledge Base, detailed how-tos, and video tutorials.
Start network management and diagnosis with PRTG and see how it can make your network more reliable and your job easier.
“All-around winning “The real beauty of PRTG is the endless possibilities it offers” “PRTG Network MonitorIT experts agree: Paessler PRTG is a great solution for IT infrastructure monitoring
network monitor”
is very hard to beat”
What network troubleshooting looks like in PRTG
Diagnose network issues by continuously tracking hardware, applications, network configurations, Ethernet and Wi-Fi internet connections, as well as LAN and virtual network parameters. Show latency, packet loss, data traffic, bandwidth bottlenecks, and other performance metrics in real time. Visualize monitoring data in clear graphs and dashboards to identify problems more easily. Gain the overview you need to troubleshoot all kinds of network security, availability, performance, and connectivity issues.
Custom PRTG map for a comprehensive IT infrastructure monitoring overview
Preconfigured Traceroute Hop Count sensor in PRTG
30-day historical data graphs in PRTG for detailed analysis
PRTG is compatible with all major vendors, products, and systems
Network monitoring, analysis, and diagnostics with PRTG in a nutshell
PRTG comes with many native sensors that keep a constant eye on specific parameters. For each parameter, you can set your preferred threshold. PRTG alerts you if performance falls under the threshold, so you can immediately check what's going on and sort it.
PRTG analysis and diagnostics includes:
Server diagnosis
Your DNS server is down and you don’t know why? Our DNS v2 sensor monitors response times and domain name resolution so you can quickly analyze the root cause of an issue. Keep a constant eye on all your physical and virtual servers, including web servers, mail servers, cloud services, and database servers.
Log analysis
Use our Event Log (Windows API) or WMI Event Log sensors for detailed event log monitoring. In the event of a sudden spike in log entries – which you can filter by log files, event types, sources, messages, etc. – PRTG will send you a notification at once. It’s also possible to have PRTG read and monitor the logs of target systems such as your CDN.
Network traffic analysis
With the Packet Sniffer sensor or our various sensors for flow monitoring (NetFlow, sFlow, jFlow, and IPFIX), it’s easy to always keep an eye on bandwidth and network traffic. PRTG filters traffic data according to IP addresses, data types, data packets, and protocols to quickly get to the root of network connection problems.
Find the root cause of the problem with our PRTG network performance monitoring and analysis solution
Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.
Your network diagnostics tool at a glance – even on the go
Set up PRTG in minutes and use it on almost any mobile device.
Create innovative solutions with Paessler’s partners
Partnering with innovative vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.
ScriptRunner
With ScriptRunner, Paessler integrates a powerful event automation platform into PRTG Network Monitor.
UVexplorer integrates tightly with PRTG to bring fast and accurate network discovery, detailed device inventory, and automatic network mapping to the PRTG platform.
UVnetworks
“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
PRTG makes spotting and troubleshooting network issues easy
Custom alerts and data visualizations make it easy to monitor, identify, and prevent technical glitches and other system and performance issues.
Network analysis and network diagnostics: FAQ
What is PRTG network analyzer and diagnostics?
PRTG is a proprietary software tool that monitors the performance and health of every component on your network. The intuitive dashboard shows you which devices, applications, web services, and other aspects of your IT infrastructure are running smoothly, and whether any are underperforming or causing issues.
You can then use a specialized diagnostic tool – many hardware manufacturers (such as HPE or Dell) and operating systems (Windows, macOS, and Linux) for instance, offer such tools out of the box – to get to the root of the problem and fix it.
Why analyze and diagnose your network with PRTG?
A network analysis and diagnostics software like PRTG enables you to be proactive, spotting and addressing issues before they cause crashes and other serious disruptions. And because everything is monitored automatically and the data is all in one place, the process is easier and quicker. You may even discover dependencies you might not have considered before.
Analysis vs diagnostics: what's the difference?
First you analyze, and then you diagnose. Think of it this way. Analysis is your doctor keeping an eye on your health and investigating any unusual symptoms. And diagnosis is when they use what they've learned to identify what's causing those symptoms and formulate a treatment plan.
PRTG works in much the same way, monitoring the state of your network, alerting you when something doesn't look right, and helping you identify where the problem lies.
Can you give me some network analysis tips?
Network analysis involves examining relationships and connections among various elements within a system. Here are some tips to get you started:
- Define your objectives: Clearly outline what you aim to achieve through network analysis. Whether it's understanding relationships, identifying key players, or measuring the flow of information, having a clear goal will guide your analysis.
- Data preparation: Ensure your data is formatted properly. Nodes (individual entities) and edges (connections between nodes) should be clearly defined. Data cleaning and transformation might be necessary to standardize information.
- Network visualization: Visual representation is powerful for understanding network structures. Experiment with different layouts, colors, and node sizing to highlight important elements or patterns within the network.
- Dynamic network analysis: If applicable, consider the temporal aspect of networks. Analyze how connections change over time to gain insights into evolving relationships.
- Iterate and refine: Network analysis often involves an iterative process. Refine your approach based on initial findings and feedback, adjusting parameters or exploring different analytical methods as needed.
What are typical command-line prompts for network analysis?
Network analysis involves using various command-line tools to inspect, troubleshoot, and analyze networks. Here are some typical command-line prompts and their usage in network analysis:
- ping <hostname or IP address>: Tests connectivity to a host.
- tracert <hostname or IP address> (Windows) / traceroute <hostname or IP address> (Linux): Traces the path packets take to a destination.
- nslookup <hostname>: Queries DNS to find the IP address associated with a domain name.
- ipconfig (Windows): Displays all current TCP/IP network configuration values.
- netstat: Displays active connections, routing tables, and network interfaces.
- nmap <options> <target>: Scans for open ports and services.
- tcpdump <options> (Linux): Captures network packets.
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 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.
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.Still not convinced?
More than 500,000
sysadmins love PRTG
Monitor your entire IT infrastructure
Try Paessler PRTG
for free
Start network analysis and diagnosis with PRTG and see how it can make your network more reliable and your job easier.
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PRTG |
Network Monitoring Software - Version 24.4.102.1351 (November 12th, 2024) |
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Hosting |
Download for Windows and cloud-based version PRTG Hosted Monitor available |
Languages |
English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese |
Pricing |
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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