Trusted Every Day by 150.000 Admins Around the Globe

More than 150,000 administrators rely on PRTG Network Monitor every day to monitor their LANs, WANs, servers, websites, appliances, URLs, and more
Network problems create business emergencies. When the network goes down, employees can't read emails. Customers can't purchase the product. Work stops. Network monitoring helps you keep your business healthy:
- Avoid expensive outages
- Address bottlenecks before they cause problems
- Reduce costs by buying only the hardware you need
Bandwidth Monitoring: Find Out Who Is Using Your Network, For What

PRTG Network Monitor runs on a Windows machine within your network, collecting various statistics from the machines, software, and devices which you designate. (It can also autodiscover them, helping you map out your network.) It also retains the data so you can see historical performance, helping you react to changes.
PRTG comes with an easy-to-use web interface with point-and-click configuration. You can easily share data from it with non-technical colleagues and customers, including via live graphs and custom reports. This will let you plan for network expansion, see what applications are using most of your connection, and make sure that no one is hogging the entire network just to torrent videos.
PRTG can collect data for almost anything of interest on your network. It supports multiple protocols for collecting this data:
- SNMP and WMI
- Packet Sniffing
- NetFlow, jFlow, and sFlow
Knowing When Things Break Is Good. Knowing Before They Break Is Even Better.

PRTG Network Monitor includes more than 130 sensor types for all common network services, including HTTP, SMTP/POP3 (email), FTP, etc. We can alert you to outages before your users even notice them, including via email, SMS, or pager. Even better, after you use PRTG to track request times and uptime for a few months, you can optimize your network such that the pager never rings again. PRTG can print reports showing how good a job you are doing. (Tell your boss that your 100% uptime last quarter deserves a raise. We'll even print you the report to do it with.)
Fair Licensing. Public Pricing. No Surprises or Hidden Costs.
Don't you get disgusted by enterprise software companies which make you talk to a salesman to hear what the price is? Or ones which quote one low price and then tack on high extra charges as soon as you want to do anything interesting? We hate that, too, so PRTG has a simple licensing model. You pay one price for this version of the software, based on how many sensors you need (i.e. how many things you want to track on your network), regardless of technology used. It is installed software: there is no recurring monthly charge. All licenses include all sensor types, an unlimited number of remote probes and Failover clustering (1 master node and 1 failover node).
We have a maintenance plan available so that you can get free upgrades to the next version of the software and get support: you'll get free upgrades/support for one year and can purchase additional years of upgrades/support if you want to.
Not sure how many sensors you'll need? We offer six licensing options, one of them will fit your needs. As a rough guideline, small business networks usually fit in our 100 sensor package, which costs $400 or €300. Most large businesses can fit in the 2500 sensor package, for $4,700 or €3,500. (European companies without a VAT ID and German companies will need to add 19% VAT tax.)
The Commitment To Quality You Expect From German Engineering
We're a small but established software company in Germany, and PRTG has been our main product since 1997. If you ever need support, you'll deal with our in-house engineers and networking experts. Your business is too important to be fobbed off on a call center that will tell you to try rebooting the PC. We answer almost all emails within 24 hours on business days, and have multiple staff members who are native or near-native in most languages PRTG supports. We're proud of the support we offer, but we're even more proud that most of our customers never have to speak to us at all, because -- unlike some software you may have suffered through -- our product actually works.
Trusted By Experts, Including 150,000 Sysadmins and the Press, Too
IT magazines Funkschau and Network Computing have selected PRTG as the winner of their comparison tests of selected monitoring products.NetworkManagementSoftware.com says: "With German-engineered features ranging from basic SNMP monitoring and alerting, to Netflow collection and packet capture, Paessler’s PRTG is well worth taking a look at". v3.co.uk says: "You don't expect specialist network monitoring tools to be simple, but even experienced engineers have difficulty getting to grips with some products. Fortunately that's a charge which can't be levelled at PRTG Network Monitor from German developer Paessler AG".