Cost / License
- Free
- Proprietary
Application types
Alerts
- Discontinued
Platforms
- Online


DomainNinja.io is described as 'Provide free website monitoring and performance testing solution. SSL testing, page speed, Uptime monitoring and much more' and is a website monitoring tool in the network & admin category. There are more than 25 alternatives to DomainNinja.io, not only websites but also apps for a variety of platforms, including SaaS, Android, iPhone and Chrome OS apps. The best DomainNinja.io alternative is Uptime Kuma, which is both free and Open Source. Other great sites and apps similar to DomainNinja.io are UptimeRobot, Pingdom, Screpy and StatusCake.


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.




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



Unlimited monitors checked from multiple location every minute. Monitor any port or setup a "heartbeat" that works well for cron jobs or any service behind a firewall. Be alerted as soon as your service is offline via email or app integration.

StablePing is a fully managed uptime monitoring service for just $3.95/month. Whenever your website goes down, their system will alert you within seconds via email or SMS (and they'll work with you to get it back online).



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.



Pinger Man is a modern platform to monitor Uptime of Websites and Applications. It supports notification via Email, SMS and Web Hooks. Users can also showcase the uptime of their services using Public Status Pages.

Web monitoring service, which checks website every 5 minutes. It detects when it's offline, redirected, broken or even hacked. Provides SMS and email notifications, statistics and logs.



ApiChecker is reliable uptime and performance monitoring for your service. It uses different servers around the world to verify your service/API/WebSite performance and uptime ?! We also provide different way to keep you notified about downtime - it can be SMS , Slack, Email...




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.



Standard uptime monitoring with alerts that include diagnostic information, timing breakdowns and dashboard snapshots. Configure alerts for HTTP statuses, reachability and performance thresholds.


