HostMonitor is a network monitoring software. It can monitor any TCP service, ping a host, retrieve an URL, check the available disk space, check integrity of your files and web site, test your SQL servers, NT services, and much more.




AppOptics is described as 'Monitor applications, infrastructure, and servers in one platform. Out-of-the-box dashboards. Metrics. Analytics. Starting at $7.50/month. Free 14-day trial' and is a Network Monitor in the network & admin category. There are more than 50 alternatives to AppOptics for a variety of platforms, including Linux, Windows, Web-based, Mac and Self-Hosted apps. The best AppOptics alternative is Zabbix, which is both free and Open Source. Other great apps like AppOptics are Netdata, Nagios, Datadog and Spiceworks.
HostMonitor is a network monitoring software. It can monitor any TCP service, ping a host, retrieve an URL, check the available disk space, check integrity of your files and web site, test your SQL servers, NT services, and much more.




Trafikito is free Linux servers monitoring solution which by default checks RAM, disk space, CPU and sends you an email if something is wrong.




SeaLion is a FREE Linux server monitoring and debugging tool for easy troubleshooting across hundreds of servers. View raw output of critical events across your servers and debug your server issues. Latest version shipped with 5 default services.
Verax NMS & APM is an IT service assurance solution for monitoring & management of networks, data centers, applications and clouds.



Amon is an all-in-one server monitoring tool. Amon monitors you cloud, system, process and applications metrics with zero configuration.


Our open and flexible server and network monitoring solution delivers a unified view of your entire IT environment. Monitor up to 100,000 devices from a single server, with distributed and redundant solutions for nearly infinite scalability.




Sentinet3 is an enterprise class unified proactive monitoring device able to monitor Systems, Applications, and Networks.

Opsview Monitor Mobile allows you to monitor what's important, anywhere, anytime. You can manage the health of your physical, virtual and cloud based systems all from the comfort of your mobile. Get the free app and make monitoring easy again.




Avoid traffic and sales loss, be alerted when your website is down! Monitor all of your web services (site, server, database, ...) 24/7 with our multiple check locations in Europe/USA. Available in 5 languages!.




All-in-one server monitoring, service monitoring, database monitoring, uptime monitoring, app metric monitoring and alerting. Fast setup. Easy to use.



It works by combining Elasticsearch with two types of components, rule types and alerts. Elasticsearch is periodically queried and the data is passed to the rule type, which determines when a match is found.