PRTG all-in-one website monitoring

  • PRTG monitors availability
  • PRTG monitors load times
  • PRTG monitors processes
  • Built-in alarm feature
  • Reporting system for long-term analysis

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

Keep a constant eye on the following
three website parameters with PRTG

 Worldwide availability

Worldwide availability

Use PRTG to monitor the availability of your website, around the clock, 365 days per year. To do so, take advantage of our HTTP Sensor and the HTTP Advanced Sensor. International companies can monitor availability from a variety of locations or across several continents. These companies will want to use our Cloud HTTP Sensor and Cloud Ping Sensor.

 Detailed load times

Detailed load times

How much time does it take for your website to load? How do load times change over an extended period of time? Monitor these parameters with our HTTP Full Web Page Sensor. This sensor will also allow you to identify the individual elements which are responsible for slow load times – the basis for system optimization.

 Processes and features

Processes and features

Are all website processes running smoothly? What about the online store? Everything should be running properly, from the homepage and shopping cart, all the way to the confirmation page. When it comes to website processes, the HTTP Transaction Sensor lets you monitor a whole series of URLs. PRTG can therefore also be used as a URL monitoring tool.

Are you ready to move to the cloud?


ok Ready-to-use monitoring tool

ok Zero stress through automation

ok Scale as you grow, pay as you go

You want all the qualities of our great monitoring tool PRTG, but without having to maintain the system and manage the hosting yourself?

We're happy to announce the launch of our new cloud solution: PRTG hosted by Paessler, which can be set up in a matter of minutes. You'll benefit from automatic software updates and will be able to scale capacity up or down quickly thanks to our flexible subscription pricing. Ready to dive in yourself?


Try the hosted version of PRTG now

A sneak peek into website monitoring with PRTG


Advantages of PRTG



When errors occur on your website, their causes can lie in the most unexpected of places. PRTG shines the flashlight on every nook and cranny: databases, servers, CDNapplications, hardware. You will therefore save considerable time getting to the root of problems and can fix errors faster.



With PRTG, there are no lurking hidden costs. Alarm feature, reports, apps – everything is included. If you’re looking to set up a small monitoring system for your website, our free version, which comes with 100 sensors, may be all you ever need.

Custom notification system

Custom notification system

PRTG comes with a customizable alarm system. Receive alerts by email, push notification, or SMS. Configure the alarm so you are only notified when absolutely necessary. With the time that is freed up, you can calmly go about the rest of your tasks.

Long-term monitoring

Long-term monitoring

Custom reports enable you to document the availability and load times of your website automatically – even over longer periods of time. You can show these reports to your higher-ups when you need to invest in your IT infrastructure to obtain high availability and optimal load times for your website, for example.

Free mobile apps

Free mobile apps

Do you travel a lot for work? No problem! PRTG is also available as an app for smartphones and tablets, which means you can access our network monitoring tool from wherever you happen to be. The PRTG dashboard offers a quick, compact overview of your system.

Hassle-free trial

Hassle-free trial

Test the trial version of PRTG for free. It takes just two minutes to configure PRTG. Use the trial to get a detailed look at our software, and to help you make a decision. Our customer support will be happy to answer your questions.

The goal: 99.999 percent!

When it comes to the availability of your website, servers, and databases,
only one figure matters: 99.999. These “five nines” are indicative of the
high availability of your network.
PRTG helps you target this ambitious goal.

Hume Bank

“PRTG lets us constantly work in accordance with the two-man rule. PRTG notifies us immediately if something is wrong in our network. Thanks to PRTG, we can use our time and resources for the things which really demand our attention.”

Brad Mennen, System Administrator at Hume Bank in Australia. Hume Bank uses PRTG to monitor its LANs, WANs, servers, website, applications, and much more. To the case study

Your website monitoring at a glance
– even 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!


Setting up PRTG
in five easy steps


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.)

Configure PRTG

Configure PRTG

Configure PRTG Network Monitor. Follow the instructions in the configuration wizard. No more than two minutes are required for the configuration. Once you have successfully configured the software, you can now access the PRTG web interface by way of the standard registration page. For new configurations, PRTG automatically opens the Configuration Guru after each login. The Guru will help you set up PRTG by asking you a few questions about your network. You can also skip the Guru and set your preferences manually at a later time.

Add your web server to PRTG

Add your web server to PRTG

Add a “device” to PRTG that represents your web server. Each device in your PRTG configuration represents a piece of physical hardware or a virtual element, which you can associate with an IP address or a DNS name. Choose “Devices | Add Device” from the PRTG main menu, then add your web server to an existing group, or first create a new group and add the web server to that one. You can now name your web server and enter its IP address or the DNS name.

Add the HTTP Sensor to PRTG

Add the HTTP Sensor to PRTG

Add the device that represents your web server to your first HTTP sensor. Choose “Add a Sensor” from your device’s context menu and follow the instructions in the wizard. To begin with, you can use the HTTP sensor which has been most effective at checking the availability of your website. Next, in the settings of this sensor, specify the address of the site (or the site element) you wish to monitor. You can now see, at a glance, if your website is available and if its load time lies within acceptable limits.

Expand your web monitoring

Expand your web monitoring

In order to obtain an overview of your entire web server, simply add HTTP sensors for each critical URL. Thanks to the ability of PRTG to intelligently replace URLs, you only need the path of the subpage you wish to monitor, and are not required to enter the entire domain part of the address. Additional HTTP sensors provide for more comprehensive website monitoring. You can use them, for example, to check the content of a delivered page or monitor all the processes used by your online store.

Evaluate and analyze data

Evaluate and analyze data

Let PRTG collect the performance data of your web server and websites over a certain period of time. The incoming measurements will be saved in the high-performance database of PRTG. This makes the evaluation and analysis of data both simple and uncomplicated. Furthermore, thanks to the graphical representation of your data, you will get a comprehensive overview of your website status.

Trusted by 200.000 users
and recognized by industry analysts as a leader

“Fantastic network and infrastructure monitoring solution that is easy to deploy and easier still to use. Simply the best available.”

Read more reviews

“Software is absolutely perfect, Support is superior. Meets all needs and requirements, This is a must have solution if you are needing any form of monitoring.”

Read more reviews

“The tool excels at its primary focus of being a unified infrastructure management and network monitoring service.”

Read more reviews


  • 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

Practical tip: “Hey Jochen, what would you tell administrators looking to monitor their websites with PRTG?"

“I am especially fond of the HTTP Content Sensor, for this sensor can monitor all kinds of website information. It lets me test the login of a website, determine the number of website visitors, and on release notes pages, see if a new software version is available.”

Jochen Greger, Senior Systems Engineer at Paessler AG

Three website monitoring
questions from
our knowledge base

Question 1: How can I check if the login authentication for a web page works? Find a detailed answer to this question in the following knowledge base article.

Question 2: How can I use the Business Process Sensor for my website back end? Find the answer to this question in this knowledge base article.

Question 3: How can I use the Business Process Sensor to monitor my website front end? Find the answer here.

4 tips for
improving the
load times of
your website

All websites get bulkier over time. It is often a slow process. Meanwhile, users become more and more impatient. It may be high time your website gets into shape. Check out our free Website Performance Ebook for some practical tips. Here are a few examples:

Change your database server

Many companies use MySQL. But is this server the best fit for your specific needs? What are the other databases that are out there? When researching database servers, be sure to also compare their load times.

Reduce CPU load

In some instances, your CPU is brought to its knees. This can occur when you have an online store and have just launched a marketing campaign. Be prepared by booking additional cloud space in advance.

Set up caching

With caching, you will ensure the files and elements of your website do not need to be reloaded each and every time a page is visited. You will therefore substantially reduce load times. With Typo3, caching is often disabled during development. Check with your developer to see if this is the case for your site.

Reduce the size of images

Each image should be compressed by default. Save all images in a web-friendly format. You can also delete unnecessary metadata to make your website significantly more compact.

ebook cloud roadmap

Thinking of going to the cloud with your IT?
Here is our proven roadmap

There are many questions to answer before moving your IT to the cloud, so Paessler offers
a free ebook that could help you.

Get your free copy of our cloud ebook now.

PRTG makes life easier!

Our website monitoring software sends you an alert whenever the performance
or availability of your website takes a hit.
You can therefore relax and concentrate on your day-to-day tasks with peace of mind.

PRTG saves time

With PRTG, you get one centralized web monitoring software for monitoring your website. The dashboard provides a quick and concise overview at all times - whether on your desktop or as an app.

PRTG saves worry

Setting up PRTG is quick and easy. Take advantage of several different HTTP sensors. With 200+ predefined sensors, you'll have no trouble detecting the causes of downtime 

PRTG saves money

80% of our customers report substantial or even exceptional network management cost savings. Our customers report that their PRTG licenses have paid for themselves in an average of a few weeks.

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 submitted an extensive survey to more than 600 IT departments worldwide who use PRTG. The goal of this survey was to optimize and fine-tune our Network Monitoring Software to better meet the needs of administrators.

One survey result: more than 95% of the participants would recommend PRTG - or have already done so.


Also of interest:

Server Monitoring: PRTG monitors mail servers, web servers, database servers – and much more. Check out our Server Monitoring page to find out how PRTG makes your job easier.  

Uptime Monitoring: On our Uptime Monitoring page, we explore the fundamental issues surrounding uptime, and introduce our uptime sensors.

Packet Capture: PRTG analyzes data packets and displays the data packet loss rate. In the event a critical value is exceeded, you’ll automatically receive an alert.

PRTG: An inside perspective

PAESSLER AG is located in the city of Nuremberg, in the heart of Germany. From here, we cater to our worldwide community. Of course, we also use PRTG to monitor our own website. In this blog article, our founder Dirk Paessler describes the things which were important to us, and how we proceeded.

German quality

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



Administrators must compare monitoring tools or search for a free one. There are several suppliers on the market.

PRTG comes with a full range of advantages:

1. Free trial version: PRTG is available in a free trial version. Use this version to get a feel for our network monitoring tool with no risk whatsoever.

2. Over 200,000 administrators: whether in large or small businesses, authorities, colleges or administrations - all around the world, more than 200,000 administrators put their trust in our network monitoring tool, and can therefore also monitor their bandwidth. Read our case studies here.

3. Support: do you have a question? We respond in a jiffy! You can already access a great deal of information online by consulting our FAQs, manuals, videos, webcasts, or knowledge base. You can of course also send us a message. We'll do our best to get back to you within 24 hours on business days.

PRTG – your network monitoring tool

PRTG is the Paessler AG all-in-one network monitoring tool. Our software is used by more than 200,000 administrators worldwide, whether it be to monitor their hardware- and server performance , their virtual environments, or the accessibility of their websites. Use PRTG for database monitoring or sql monitoring.  PRTG is a one fits all network analyzer tool.

Save time, worry, and money. PRTG is configured in a matter of minutes. The trial version is offered free of charge. And you can upgrade whenever you like.


Network Monitoring Software - Version (March 24th, 2020)


Download for Windows and hosted version 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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