Nagios Alternatives for Online

Port Monitor is a comprehensive monitoring solution offering 24/7 uptime monitoring for websites and servers. It provides instant notifications on downtime, detailed reporting, and features like public status pages and SSL/domain expiration tracking. Available as a free service with options for on-premises deployment, it caters to both small projects and larger IT infrastructures.

AppBeat is a comprehensive website and network monitoring service designed to alert users promptly about downtime or performance issues. It offers reliable uptime monitoring, performance measurement, and functional test capabilities, ensuring your online assets are always operational and responsive.

Spiceworks is a comprehensive, free IT management platform designed for small and medium-sized businesses. It offers a suite of tools for inventory, network monitoring, help desk, and community engagement.

Datadog is a leading cloud-scale monitoring and analytics platform that unifies data from across your infrastructure, applications, logs, and networks. It provides comprehensive visibility and actionable insights for DevOps teams, IT professionals, and business users alike.

NetCrunch is a powerful, single-server network monitoring platform designed for comprehensive visibility into your IT infrastructure. It provides robust and scalable network monitoring capabilities, including performance analysis, application monitoring, and automated network discovery, all managed from a Windows Server-based deployment for high efficiency.

Dynatrace Ruxit offers a comprehensive, AI-powered application performance monitoring solution. It provides deep visibility into user experience, application behavior, infrastructure health, and cloud environments, enabling rapid identification and resolution of performance issues.

Domotz is a comprehensive cloud-based network monitoring and management platform designed for IT professionals and MSPs. It provides real-time visibility, alerting, and remote access capabilities to manage and support networks and devices across various environments, from SMBs to large enterprises.

HappyApps is a comprehensive online platform for monitoring the uptime and performance of your websites, servers, and cloud applications, offering robust alerting and detailed insights to ensure the reliability of your digital infrastructure.

CoScale is a performance monitoring platform designed for modern, complex environments like containers and microservices. It offers full-stack visibility from infrastructure to application, utilizing anomaly detection to proactively identify issues and optimize performance.

Observium is an auto-discovering network monitoring platform designed for low-maintenance operation. It offers comprehensive visibility into a wide range of network devices, operating systems, and applications through intuitive graphical interfaces and extensive platform support.

Monitis provides comprehensive all-in-one cloud-based monitoring for websites, servers, networks, applications, and custom metrics, ensuring high availability and optimal performance.