SiteDelta is an Add-on for old versions of Mozilla Firefox (before the introduction of WebExtensions).
Cost / License
- Free
- Proprietary
Application type
Platforms
- Mozilla Firefox
- Google Chrome



UptimeRobot is described as 'Monitor up to 50 sites with 5-minute intervals for free. Receive alerts by email, SMS, calls, and integrate with platforms for seamless updates' and is a very popular website monitoring tool in the network & admin category. There are more than 100 alternatives to UptimeRobot for a variety of platforms, including Web-based, SaaS, Windows, Self-Hosted and Linux apps. The best UptimeRobot alternative is Better Stack. It's not free, so if you're looking for a free alternative, you could try Better Stack or Uptime Kuma. Other great apps like UptimeRobot are Tianji, Pingdom, Kener and HetrixTools.
SiteDelta is an Add-on for old versions of Mozilla Firefox (before the introduction of WebExtensions).



Monitoring the availability of websites or servers and controlling performance and response time. Receiving alerts when a test result is negative. Discovery offer for monitoring a website for free.




Free simplest server monitoring. 10 minutes checks interval. Up to 10 services per account for free. Multiple contacts. Availability history. Public status page. Uptime statistics.
Site Qwality is an innovative SaaS platform designed to simplify website monitoring for businesses. It provides comprehensive tools to track uptime, performance, and errors across multiple locations, ensuring that websites remain operational and efficient.



Uptinio is a real-time monitoring tool for websites, servers, and services. It includes uptime, SSL, domain expiration, keyword, game server, and cron job monitoring, providing alerts and insights to keep users informed about downtime and performance issues.



Downhound provides outage information for over 14,000 websites, apps, games & internet providers.

Get notified about downtime before your customers do. Statustes monitors your websites, apps, and servers 24/7, providing real-time alerts and detailed insights. Stay ahead of performance issues and ensure a smooth user experience with customizable status pages.




Cachet is a simple to use and easy to manage status page system and can be easily installed and used to track third party service letting your users know what's going on.


It is an All-In-One Site Monitoring & SEO Tool that Reports site Performance, Monitoring Key aspects from Server Health to Domain Expiry, Title text and Website Uptime with instant Alerts to any Issues.




Stasis uses machine learning to model normal activity patterns for your website or app, then lets you know if something looks unusual.


PingRobot is a website monitoring service that alerts you when websites are not operational and when they come back online.

Sites Watcher checks web pages that interest you for changes. When changes are found, Sites Watcher will show you current page version with highlighted updates.



