24/7 website availability?
It’s possible with PRTG


  • Monitor the availability
    of your websites

  • Monitor load times

  • Receive immediate notifications in the event of downtime or poor performance

  • Monitor from several
    different locations


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.







What’s “website availability?”

Website availability is the amount of time that a website or service can be accessed by users. It is usually calculated as a percentage, and ideally, should be as close to 100% as possible. The “five nines” – or 99.999%, correspond to 5 minutes of downtime per year and is a value worth pursuing.




Why website availability
is important

For most companies, a properly functioning website is a must.
Slow pages and 404 errors can have a major impact on business
and often come with a hefty price tag.

The PRTG Network Monitor provides round-the-clock monitoring
of the performance and availability of your websites. Thanks to
PRTG, you can stop errors in their tracks. And in the event that
one sneaks through, you'll be notified at once.



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

We have compiled some reviews for you.





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.



PRTG monitors the
following parameters:


  • Availability of your websites and domains
  • Whether certain content is available on the website
  • Page speed
  • Changes to the website
  • CPU and memory usage, storage space on your web servers, etc.
  • Availability and performance of your databases

Check worldwide availability with PRTG

PRTG HTTP sensors monitor the availability and speed of your
domains and websites. And with the Cloud HTTP Sensor and
Cloud Ping Sensor, you can check availability from locations around the world.


cloud http sensor


cloud ping sensor



PRTG in a nutshell


PRTG monitors your entire IT infrastructure

Traffic, packets, applications, bandwidth, cloud services, databases, virtual environments, uptime, ports, IPs, hardware, security, web services, disk usage, physical environments, IoT devices and almost everything you can imagine.

PRTG supports most technologies

SNMP (all versions), Flow technologies (i.e. NetFlow, jFlow, sFlow), SSH, WMI, Ping, and SQL. Powerful API (Python, EXE, DLL, PowerShell, VB, Batch Scripting, REST) to integrate everything else. See all PRTG features

PRTG is ready for every platform

Download for Windows and hosted version
available. Monitoring via AJAX Web Interface or Desktop Client.



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.