Netthrob is described as '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' and is a Uptime Monitor service in the network & admin category. There are more than 100 alternatives to Netthrob for a variety of platforms, including Web-based, SaaS, Windows, Linux and Android apps. The best Netthrob alternative is Uptime Kuma, which is both free and Open Source. Other great apps like Netthrob are Tianji, UptimeRobot, Pingdom and HetrixTools.