UptimeRobot

UptimeRobot is a website monitoring service that checks the availability of your website or web applications. It sends you alerts if your website goes down, allowing you to quickly resolve any issues and minimize downtime. It offers various monitoring plans, including free options for basic monitoring. UptimeRobot is a valuable tool for businesses and website owners who want to ensure their websites are always up and running.

Website: https://uptimerobot.com