Clesk Uptime
Guides
Practical articles on availability, monitoring and handling outages.
What is uptime monitoring? The basics, explained simply.
Uptime monitoring explained: how external checks work, the main check types (HTTP, SSL, heartbeat) and what actually matters when choosing a service.
6 min read
99.9% uptime: how much downtime is that, really?
99.9% sounds great but means 44 minutes of downtime per month. The conversion table from 99% to 99.999%, what is realistic, and what SLA numbers leave out.
5 min read
Monitoring cron jobs: how to notice when jobs die silently.
Cron jobs fail silently: backups, imports and reports die unnoticed. How to monitor them with the heartbeat pattern, including curl examples and common pitfalls.
6 min read
HTTP status codes from a monitoring perspective: when is an alert justified?
200, 301, 404, 500, 503: what the key HTTP status codes mean from a monitoring perspective, when an alert is justified, and why soft 404s are so treacherous.
6 min read
Website down: the checklist for when it happens.
Website unreachable: verify first, then check in the right order (DNS, server, certificate, deployment) and communicate properly. The checklist for the worst moment.
7 min read
Uptime monitoring and GDPR: what website operators should look for.
What data flows through website monitoring, why the provider location matters and which questions to settle before picking a tool. A practical overview.
6 min read