Open source observability platform. SigNoz helps developers find issues in their deployed applications & solve them quickly.




Statance is described as 'Server Monitoring and Down Alerts made easy! WIndows, Linux & macOS Monitor servers easily and receive alerts on CPU, RAM or downtime' and is a Uptime Monitor service in the network & admin category. There are more than 100 alternatives to Statance for a variety of platforms, including Web-based, Linux, SaaS, Windows and Mac apps. The best Statance alternative is Zabbix, which is both free and Open Source. Other great apps like Statance are Uptime Kuma, UptimeRobot, Nagios and Datadog.
Open source observability platform. SigNoz helps developers find issues in their deployed applications & solve them quickly.





Screpy is an AI-based web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. It's powered by Lighthouse and it also includes some different analysis tools (SEO, SERP, W3C, Uptime, etc).




Monitoring for Ruby & Elixir developers. All the metrics and alerts you need to keep your app running smooth. Support for Rails, Rack, Sinatra, Padrino & Grape.




Track web page changes in any web page daily for free users, every 30 minutes for paid users - no RSS or Atom required. Receive notifications via email, Instant Message, and SMS.
Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider. You can check HTTP result codes and even contents of the checked pages.

NodePing Server Monitoring and Web Site Monitoring. Simple but powerful Internet service monitoring. Checks as frequent as once a minute.



PageMon.net: we're watching!
Boring checking tons of sites for updates? Read updates in your feed reader!.
Website uptime monitoring. Be notified by email when your site is down. Free and open source, monitor as many URLs as you want. You can hack it and host it yourself or use the official instance.




PushMon is a new kind of cloud-based monitoring system. Instead of checking public facing servers on a regular basis, PushMon will wait for pings from the objects being monitored. These objects are usually batch jobs, scheduled/cron scripts, backups, or test scripts, but really...



The AppDynamics platform gives today’s software-defined businesses the ability to analyze and optimize digital business performance in real time.



Statsignal is the simplest and most cost-effective way to monitor your website or server and publish a status page of your system. No plans, pay as you go. Free monitors available.



