Learn how to monitor TCP ports with manual checks, continuous monitoring, alerts and best practices that help you catch port failures before users do.
Learn what website maintenance is, what it includes, how much it costs, and the best tools and best practices to keep your site secure, fast, and reliable.
Learn how to build an incident response playbook with clear steps, roles, and workflows. Discover how Instatus handles outages faster and keeps users informed.
Learn the real difference between downtime and uptime, what causes each, how to measure them, and how to communicate outages before they cost you customers.
Learn how to calculate uptime with a clear formula, step-by-step process, and best practices to measure service reliability and track downtime accurately.
Learn how to write the cron expression for every 5 minutes, what it actually does, and how to set it up so silent failures never catch you off guard.
Learn what a cron job is, how it automates server tasks, and how Instatus simplifies monitoring and communication during incidents for better reliability.
Understand the crucial differences between uptime and availability metrics. Learn how to measure, monitor, and optimize both for better system reliability and user experience.
Learn what server monitoring is, how it works, and why it's key to reducing downtime and improving performance for SaaS, DevOps, and developers.
Learn what DNS monitoring is, why it matters, and how to monitor DNS servers to prevent outages, boost performance, and stay ahead of issues.
![TCP Port Monitoring Explained [+ Best Practices]](/_next/image?url=%2Fblog%2Fthumb-tcp-port-monitoring.jpg&w=3840&q=75)
![We Share How to Calculate Uptime [+Best Practices]](/_next/image?url=%2Fblog%2Fthumb-how-to-calculate-uptime.jpg&w=3840&q=75)
