Paessler is a software company focused on IT infrastructure monitoring, best known for its PRTG product family. Its solutions help organizations monitor systems, devices, applications, network traffic, and other components across IT, operational technology, and IoT environments. Products include PRTG Network Monitor, PRTG Enterprise Monitor, PRTG MSP Edition, and PRTG Hosted Monitor, alongside extensions and monitoring resources such as sensors, scripts, and templates.

PRTG Hosted Monitor is Paessler’s cloud-based monitoring service for cloud, on-premises, and hybrid infrastructures. Hosted on AWS, it requires no dedicated server installation and includes automatic updates and backups. Users can monitor distributed sites through remote probes, view infrastructure through customizable maps and dashboards, receive real-time alerts, and create tailored reports. The service supports technologies and protocols including ICMP, SNMP, and HTTP, with a multi-platform probe available for Linux, Raspberry Pi, and NAS devices.

Paessler offers subscription plans that scale to different monitoring needs, a free 10-day trial, training, documentation, webinars, and customer support.