Website Monitor checks your sites around the clock and alerts you by email, Slack, Discord or webhook when they go down. Free plan with 3 sites; Pro with 1-minute checks and public status pages. Founder price of US$3.99/month locked for life for the first 100 accounts. A simple, cheap alternative to UptimeRobot, Pingdom and StatusCake. Available in English, Spanish, Portuguese, French and German.