Statping-ng - Monitor your Web Services
An open source server to monitor your web applications and all other HTTP, TCP, UDP, ICMP and gRPC services.
Statping-ng has multiple notifiers so you can know when a service becomes offline as soon as it happens. We have already implemented Slack, Discord, Telegram, Emailing (SMTP), and many others.
Statping also has a free mobile app available on the App Store and Google Play so you add/updated services, update notifiers, create announcements, and everything else. With the Statping Mobile App you can also receive push notifications using the Mobile Notifier.