Percy is a visual testing and monitoring tool that focuses on detecting visual changes in web applications

Datadog is a cloud-based monitoring and analytics platform that provides observability and security for cloud-scale applications

Create automatic monitors for detecting and scanning changes on web pages, evaluate content based on conditions you define and trigger actions such as notifications, sounds, emails etc.

Provide your users the experience they expect. Our developer-first observability platform delivers real-time data to improve app performance and help you balance roadmap agility with application stability.

Uptime Kuma is an easy-to-use self-hosted monitoring tool.

The world's leading uptime monitoring service.