Apps to Website Monitoring

PHP Server Monitor is an open-source, self-hosted tool for monitoring server and website availability and performance. It provides essential monitoring features, including uptime checks, website status, and various service monitoring, all from a centralized web interface.

PageSpeed Insights is a free online tool provided by Google that analyzes the speed performance of web pages on both mobile and desktop devices. It provides detailed reports on how well a page is performing and suggests actionable recommendations to improve its loading speed and overall user experience.

AWStats is a free, open-source web analytics tool that analyzes server log files to generate detailed reports on website visitor statistics. It provides insights into traffic sources, visitor origins, used browsers, operating systems, and other key metrics, making it a valuable resource for understanding website performance based on raw server data.

Update Scanner is a long-standing and reliable Firefox extension designed to monitor web pages for content changes. It's particularly useful for tracking updates on websites that do not offer traditional Atom or RSS feeds, providing a simple and efficient way to stay informed about modifications.

Wappalyzer is a powerful utility designed to reveal the underlying technologies used on any website. It provides detailed insights into frameworks, content management systems, e-commerce platforms, web servers, analytics tools, advertising networks, and much more, helping developers, marketers, and researchers understand the digital landscape.

Huginn is a robust open-source automation platform designed for building powerful agents that monitor, filter, and act on information from various online sources, creating complex digital workflows.

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.