Pingdom is the best website monitoring service for uptime monitoring and is used by web developers and businesses to ensure site performance.

Nagios is an open source IT monitoring tool for servers, networks, and applications used by IT professionals.

BugSnag is an application monitoring platform for developers to track errors, monitor performance, and trace requests across mobile and web applications.

Raygun is an application monitoring platform for web & mobile apps, offering Crash Reporting, RUM, and APM to help developers resolve end-user issues.

Honeybadger is an all-in-one error tracking, APM, and logging platform for developers to find and fix application issues faster across Ruby, PHP, Python, and more.

Stackify provides application performance monitoring (APM) tools including Retrace and Prefix for developers to monitor, trace, and resolve application issues.

Netdata is a real-time monitoring platform for infrastructure and apps.

Checkmk is an IT monitoring platform for infrastructure and application monitoring.

Dotcom-Monitor is a website monitoring service for uptime, performance, and user journeys.

Checkly is an application monitoring tool for developers and SREs.

Dynatrace offers AI-powered mobile application monitoring and analytics for apps on Android/iOS, focusing on crash analytics, performance, and user experience insights.

WhatsUp Gold is the best IT infrastructure monitoring tool for network monitoring and is used by IT professionals in various industries.

MonSpark is a web application monitoring service that requires no code installation and prior knowledge.

GlitchTip is an open source error tracking platform for developers and is used by software development teams.

Helicone is an LLMOps platform providing an AI Gateway for routing, monitoring, and debugging AI applications with 100+ model access and 0% markup fees.

Monitor.Us is a free, cloud-based, all-in-one IT systems monitoring tool for IT consultants, Sys Admins, and DevOps to track uptime, server health, and network performance.

Inspector is a real-time web application debugging tool for developers and is used by software development teams.

Streply is an application error tracking & performance monitoring tool for developers.

Tideways is the best tool for PHP performance monitoring and is used by developers to enhance application efficiency.