Sites and apps similar to updown.io include Uptime Kuma, which is free and open source. Other options are Better Stack, UptimeRobot, Tianji and Pingdom. There's no shortage of Website Monitoring Tools like updown.io, with more than 100 alternatives for Windows, Linux, Android, iPhone and self-hosting.
Monitive is an uptime monitoring service, where users sign up and input their website address, which we check every minute, from a random location around the world, and instantly notify them when their site is down.
India
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.
Netthrob runs automated verification checks on your website every three minutes from five different geographies and immediately informs you through Phone, SMS & Email when your site goes down.
UptimeMate helps you to find technical issues on your websites and makes sure that you are the first to know.
The website monitoring service that doesn't suck. Get an email when your website goes down. Statuses are available by email, web, RSS feeds and widgets.
Simple to use website monitoring supporing both HTTP, HTTPS and web serivce monitoring service, with email and sms notificataion. Free Sign up!
Proactively monitor your websites and online services. Receive immediate notification when a problem is detected so you can quickly resolve the root cause and prevent potential escalation.
Slovenia
EU
Websites and networks monitoring:
AgentSlug.com is simple but perspective application to monitor your website. For now, you can find there a full featured uptime monitoring tool. However, the app is developed constantly to provide complementary webmaster tools in the nearest future.
Wormly offers server monitoring, website monitoring and uptime monitoring to keep you online and performing fast. Remote monitoring from outside the firewall alerts you when failures occur, while internal server health monitoring reveals problems before they cause downtime.
United States
United Kingdom