What 'monitoring' actually means
Website monitoring means having an external service test your site on a schedule and alert you when something is wrong. The four core checks:
- Uptime — does the site respond at all?
- Performance — is response time within an acceptable range?
- SSL — is the certificate valid and not expiring soon?
- Content — does the page contain the text it should (catches white-screen deploys)?
Best practices that actually matter
- Check from multiple regions — a single-region check misses regional CDN failures.
- Require two consecutive failures before alerting — eliminates noise from blips.
- Send alerts to at least two channels (email + SMS or Slack).
- Have one named owner for the alerts. Shared inboxes get ignored.
- Review the monthly uptime report — patterns reveal hosting issues.
What to do when an alert fires
First, verify the site is actually down (run a manual uptime check). Then run a Ping and DNS lookup to localize the issue. If your site is up but slow, check server load. If the alert is for SSL expiry, run renewal immediately. Document each incident — you'll see the same root causes repeat.