DomainNinja.io provide free website monitoring and performance testing solution. SSL testing, page speed, Uptime monitoring and much more...
Silent Down Alternatives
Silent Down is described as 'Website uptime and performance monitoring platform, to keep an eye on your application and instantly alert you if any issues arrive' and is a Uptime Monitor service in the network & admin category. There are more than 100 alternatives to Silent Down for a variety of platforms, including Web-based, SaaS, Windows, Linux and Self-Hosted apps. The best Silent Down alternative is Uptime Kuma, which is both free and Open Source. Other great apps like Silent Down are Better Stack Uptime, Tianji, UptimeRobot and Pingdom.
Alternatives list
Cost / License
- Free
- Open Source (MIT)
Platforms
- Self-Hosted


Meet Avospy. Website monitoring, instant alerts, SEO analyzer, spying your competitors... all in one dashboard. Track and analyze errors, website speed, redirects, sitemaps and much more. Try for free, no credit card required.

Monitor your website, webservices and SMTP services both on, and off-premise for not only general availability and performance - but full content checks ranging from basic keyword and HTML DOM analysis, through to more advanced functionality such as Google and Kendo UI Charting...
Easy-to-use and accurate real-time monitoring of your websites and APIs to keep you up to date with performance. In the event of an outage, we notify you immediately via email, Slack, Webhooks, SMS, Telegram, or Discord.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Online
- Software as a Service (SaaS)



Don't let your site visitors discover your WordPress site's issues before you do. SiteAlert monitors your site's performance, availability, broken links, broken images, blacklists, and more.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Software as a Service (SaaS)
- Wordpress


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An honest status page that shows your historical downtime in full and lets your customers trust your service more by seeing exactly what your uptime is.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)

Server Monitoring and Down Alerts made easy! WIndows, Linux & macOS Monitor servers easily and receive alerts on CPU, RAM or downtime.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Software as a Service (SaaS)

Website monitoring made simple yet powerful. Get notified when your site experiences an outage via your choice of method. Escalate when needed.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Software as a Service (SaaS)


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This is a Website for monitoring the Status of companies on the web. We have an internet service Up/Down Check and Global Map reporting.


Monitoring availability and performance of websites & web applications. Checking uptime, content, testing forms & transactions, measuring page loading speed, watching for domain and SSL certificate expiration.


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UpTower is an easy-use tool for website monitoring. UpTower checks websites in 1-minute intervals and notifies user via push notifications about every outage immediately. Using UpTower app user can monitor websites and their availability for free.
Cost / License
- Free
- Proprietary
Application types
Platforms
- Online
- Android
- iPhone


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