We alert you, before your customers do.
OnlineOrNot monitors your websites, web apps, and APIs, letting you know instantly if anything goes wrong.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Software as a Service (SaaS)


Website Monitoring by Uptime.com is described as 'Uptime.com: Real-time availability monitoring & response for preventing website downtime. Your complete website monitoring solution' and is a Uptime Monitor service in the network & admin category. There are more than 100 alternatives to Website Monitoring by Uptime.com for a variety of platforms, including Web-based, SaaS, Windows, Self-Hosted and Linux apps. The best Website Monitoring by Uptime.com alternative is Better Stack Uptime, which is free. Other great apps like Website Monitoring by Uptime.com are Uptime Kuma, UptimeRobot, Pingdom and Kener.
We alert you, before your customers do.
OnlineOrNot monitors your websites, web apps, and APIs, letting you know instantly if anything goes wrong.


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.



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...



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.




Website monitoring service that offers a comprehensive free plan with:
The.


🔥 Free & open source under MIT! Über fast, backwards compatible (IE8+), tiny, and simple status page built with Hugo. Compatible with Netlify & GitHub Pages. https://github.com/mistermantas/cstate.

A simple self-hosted status page site with an API written in Django under the BSD license.
Kuvasz ['kuv?s], an open-source, self-hosted uptime & SSL monitoring service with status pages, designed to help you keep track of your websites and services. It provides a modern, user-friendly interface, a powerful REST API, and supports multiple notification channels like...




RapidSpike is a Digital Experience Monitoring Platform that interacts with your online platforms exactly as your customers do. It collects data across your digital ecosystem to help you improve a fast, reliable digital customer experience.



