OnlineOrNot is described as 'We alert you, before your customers do' and is a Uptime Monitor service in the network & admin category. There are more than 50 alternatives to OnlineOrNot for a variety of platforms, including Web-based, SaaS, Self-Hosted, Android and Linux apps. The best OnlineOrNot alternative is Uptime Kuma, which is both free and Open Source. Other great apps like OnlineOrNot are Better Stack Uptime, Tianji, UptimeRobot and Pingdom.
Uptime.com: Real-time availability monitoring & response for preventing website downtime. Your complete website monitoring solution.
"Is It Down Right Now" monitors the status of your favorite web sites and checks whether they are down or not. Check a website status easily by using the below test tool. Just enter the url and a fresh site status test will be perfomed on the domain name in real time...
PHP Server Monitor is a script that checks whether your websites and servers are up and running. It comes with a web based user interface where you can manage your services and websites, and you can manage users for each server with a mobile number and email address.
Downdetector monitors over 3,000 services in 25 countries including telecommunication outages (internet, phone and TV service), online banking problems, websites that go down and apps that aren’t working.
DomainPulse.io is an advanced service designed to help users easily monitor and manage all their domain registrations in one place.
Downtime Cat monitors your website, and if it goes offline, sends you an email so you can fix it fast.
NodePing Server Monitoring and Web Site Monitoring. Simple but powerful Internet service monitoring. Checks as frequent as once a minute.
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