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)


Spectate is described as 'Take control of your monitoring with Spectate. Our efficient platform offers efficient monitoring and incident management tools, so you can stay ahead of potential issues and keep your projects running smoothly' and is a website monitoring tool in the network & admin category. There are more than 50 alternatives to Spectate for a variety of platforms, including Web-based, SaaS, Self-Hosted, Docker and Windows apps. The best Spectate alternative is Uptime Kuma, which is both free and Open Source. Other great apps like Spectate are Better Stack, UptimeRobot, Kener and Pingdom.
We alert you, before your customers do.
OnlineOrNot monitors your websites, web apps, and APIs, letting you know instantly if anything goes wrong.


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.




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.




Uptime Monitor monitors your resources using HTTP/HTTPS (highly customizable), TCP, or Ping protocols. It supports multiple notification channels such as SMS, email, Slack, and Discord. In addition, Uptime Monitor can host status pages on your own domain for free.


UpTimeLine checks that your websites are online and notifies you in case of downtime. Get up to 20 monitors checked every 5 minutes for free. All HTTP methods, custom body and headers, regex check on response body, SSL certificate monitoring and more.

Free SaaS service for Uptime Monitoring for web sites, hosting servers and ports & custom Status Pages.

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...




Status.io is a platform for system status pages and status notifications. Companies rely on Status.io to track outages, schedule planned maintenances, broadcast status notifications, and much more; and their customers love the transparency.




Testomato allows you to create tests in seconds so you can take control of your website's performance. Errors are checked from multiple locations to ensure accuracy. Monitor uptime performance as often as every 15 seconds!




Performance monitoring simplified. Never let users see your website down or with bad loading speeds. Receive alerts & insights in real-time on health and performance.




UptimeMate helps you to find technical issues on your websites and makes sure that you are the first to know.



Silent Down is a website uptime and performance monitoring platform, to keep an eye on your application and instantly alert you if any issues arrive.



