Updates, deep dives, and thoughts on building monitoring infrastructure.
Slack is where your team already works. Connect your uptime monitor with a webhook, route critical alerts to the right channels, and test delivery before the first 2am page.
Uptime checks prove your server responds. DNS monitoring proves traffic still routes to that server. Monitor A, MX, NS, and TXT records so hijacks and misconfigurations surface before users notice.
Your uptime monitor says everything is up, but pages load in 8 seconds. Degraded performance is the gap between a passing HTTP check and a good user experience.
Uptime monitoring tells you whether a server responds. Synthetic monitoring tells you whether users can complete real workflows. Most production teams need both, starting with uptime checks on critical endpoints.
A green homepage check does not prove your API works. Monitor critical endpoints individually with tuned timeouts, response validation, and alerts that match real user impact.
Monitor SSL certificate expiration by connecting to each hostname, reading the notAfter date, and alerting at 30, 14, and 7 days before expiry. Uptime checks alone will not catch this.
Cron jobs fail silently because nothing watches for a missing run. Heartbeat monitoring flips the model: your job checks in when it finishes, and you alert when it does not.
False uptime alerts happen when a monitor mistakes a network hiccup for a real outage. Fix it with consecutive-failure thresholds, tuned timeouts, and checks that match real user impact.
You prevent website downtime by combining proactive monitoring with infrastructure redundancy. Here are 7 practical steps that actually work.
Server downtime costs the average business between $5,600 and $9,000 per minute. But detection time is recovery time — learn how to calculate your actual exposure and close the gap.
Infrastructure monitoring from the command line. A single Go binary, YAML config, and the same CLI whether you self-host or use the cloud.