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Monitoring guides and articles

Every CompleteStatus blog post tagged Monitoring — 22 articles, newest first.

Articles

monitoring icmp

ICMP Ping Monitoring: When It's the Right Check, and When No Reply Doesn't Mean Down

When to use an ICMP ping monitor instead of a TCP or HTTP check, why firewalls drop ping, and how packet loss and round-trip time tell you more than up or down.

8 min read
change-detection defacement

Website Change Detection: Catch Defacement Before Your Visitors Do

How website change detection works (rendered DOM vs raw HTML, tuning out dynamic noise) and how to catch defacement before your visitors do.

6 min read
monitoring consolidation

You're Paying for 5 Monitoring Tools. Here's How to Consolidate to One.

Small teams often pay separately for uptime, status pages, cron, DMARC and SSL monitoring. The monthly math, and how to fold it into one tool.

4 min read
api-monitoring monitoring

API Monitoring Beyond Ping: Assertions, Latency Budgets and Auth

A 200 OK doesn't mean your API works. Status-code and JSONPath assertions, latency percentiles, authenticated checks and third-party dependencies.

6 min read
cron heartbeat-monitoring

Silent Cron Job Failures: Why You Need Heartbeat Monitoring

Cron jobs fail silently, with exit codes nobody reads and mail nobody receives. How heartbeat monitoring catches dead jobs, hung jobs and rebooted servers.

6 min read
uptime monitoring

Uptime Monitoring Best Practices: Intervals, False Positives, and What 99.9% Actually Means

Check intervals, confirmation checks, keyword assertions, alert routing and what 99.9% really means. A practical uptime monitoring guide for 2026.

6 min read
performance ttfb

Why Is My Website Slow? Diagnosing Latency Layer by Layer

DNS, TLS, TTFB, download and front-end weight. A layer-by-layer method for finding where your page's time goes, starting with one curl command.

6 min read
monitoring keyword-checks

The Page Loads, But It's Broken: Catching Failures That Return 200

Soft failures (blank pages, dead checkouts, APIs returning errors with status 200) slip past status-code monitoring. Content assertions catch them.

6 min read
tcp port-monitoring

TCP Port Monitoring — Watching the Services That Aren't Websites

HTTP checks miss mail servers, SSH and custom services. What a TCP port check proves, what it doesn't, and when a heartbeat is the better tool.

6 min read
ecommerce uptime

Monitoring E-Commerce Before Peak Season — A Pre-Black-Friday Checklist

Black Friday readiness for e-commerce: monitor the money path, sweep certificates before code freeze, baseline response times and set up on-call now.

6 min read
health-checks api-monitoring

Health Check Endpoints Done Right — Designing /health So It's Worth Monitoring

Shallow vs deep checks, /live vs /ready, real status codes and load-balancer cascade failures: how to design health check endpoints worth monitoring.

6 min read
wordpress monitoring

Monitoring WordPress Sites — What Breaks, and How to Catch It

WordPress runs over 40% of the web and fails in WordPress-specific ways. Keyword checks, wp-cron heartbeats, defacement detection and xmlrpc abuse.

6 min read

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