Reactive server management means waiting for something to break and then scrambling to fix it. Proactive monitoring identifies issues before they become outages, giving you time to address problems during business hours instead of at 3 AM.
Key Server Metrics
CPU Usage
How hard your server processor is working. Normal: 20-40%. Elevated: 40-70%. Critical: over 80%. Sustained high CPU indicates you need code optimization or a server upgrade.
Memory (RAM)
How much memory your applications consume. Normal: 40-60%. Elevated: 60-80%. Critical: over 90%. Memory exhaustion causes crashes. Monitor for memory leaks from plugins or applications.
Disk Space
Storage usage. Keep below 80%. Databases grow over time, log files accumulate, and backups consume space. Automate log rotation and old backup cleanup.
Response Time
How quickly your server responds to requests. Target: under 200ms for the server response (TTFB). Slow responses indicate server overload, database issues, or application problems.
Setting Up Alerts
Configure alerts for:
- Server down (immediate alert)
- CPU over 80% for 5+ minutes
- Memory over 90% for 5+ minutes
- Disk usage over 85%
- Response time over 3 seconds
- SSL certificate expiring within 14 days
Need server monitoring setup? Contact us for managed hosting and monitoring.
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Frequently Asked Questions
What should I monitor on my web server?
Essential metrics: CPU usage, memory usage, disk space, network traffic, response time, and error rates. Alert thresholds: CPU over 80%, memory over 90%, disk over 85%, response time over 3 seconds, error rate over 1%.
What tools monitor server performance?
Managed hosting often includes monitoring. For DIY: New Relic ($25+/month), Datadog ($15+/host/month), UptimeRobot (free basic), and Netdata (free, self-hosted). For WordPress: Query Monitor (free plugin) identifies performance bottlenecks.
How do I know when to upgrade my server?
Upgrade when: CPU usage consistently exceeds 70%, memory usage stays above 80%, disk space is over 80% full, response times exceed 2 seconds during normal traffic, or you are experiencing regular traffic-related slowdowns.
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