Top Alternatives to PHP Server Monitor

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.

Zabbix is a robust enterprise-class open-source solution for real-time monitoring of millions of metrics collected from tens of thousands of servers, virtual machines, and network devices. It provides a highly flexible and scalable platform for comprehensive IT infrastructure monitoring.

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.

Nagios Core is a powerful, open-source monitoring system designed to keep a vigilant eye on your IT infrastructure. It provides comprehensive surveillance of systems, networks, and hardware, ensuring critical services remain operational and alerting administrators to potential issues before they impact end-users.

Pingdom provides comprehensive website and performance monitoring, ensuring your online services are always available and performing optimally. Gain insights into uptime, page speed, and user interactions to deliver a seamless digital experience for your customers.

StatusCake is a comprehensive, web-based monitoring platform designed to keep businesses informed about the health and performance of their online assets, including websites, servers, and applications.

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

Pingoscope is a comprehensive website and server monitoring platform that provides detailed insights into the health, performance, and availability of your online assets. It offers a wide range of monitoring capabilities, including uptime, performance, domain, SSL, and network monitoring, along with features like public status pages and actionable reports.

Site Down is a comprehensive platform offering website, server, and application monitoring to ensure continuous availability and optimal performance. It provides real-time alerts and insightful reporting for proactive issue resolution.