DeferPanic is described as 'Go application monitoring. Production performance graphs, alerts, error report collection'. There are more than 25 alternatives to DeferPanic, not only websites but also apps for a variety of platforms, including Linux, Windows, Mac and Android. The best alternative is Zabbix, which is both free and Open Source. Other great sites and apps similar to DeferPanic are Nagios (Freemium, Open Source), Sentry (Freemium), Datadog (Paid) and Icinga (Freemium, Open Source).
Gather and analyze accurate statistics and performance metrics, visualize it, get notified about current and potential issues without delay, and take advantage of our time-tested professional development and support.
Datadog is a monitoring service for IT, Dev & Ops teams who write and run applications at scale, and want to turn the massive amounts of data produced by their apps, tools and services into a unified view of IT infrastructure. 120+ Integrations!.
Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems. It is designed to be very plug and play. A default installation provides a lot of graphs with almost no work.
Monit is a free open source utility for managing and monitoring, processes, programs, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.
Monitor servers, network devices and websites via one modern SaaS solution. Instant push alerts, pre-configured for a fast & easy setup, highly affordable pricing, MSP functionality. Monitors cpu, disks, memory, processes and availability.