Any period when your site is unreachable, slow beyond a threshold, or returning errors to visitors.
Last updated ยท Reviewed by Ali Hassan
Downtime is measured in minutes per month. 99.9% uptime allows roughly 43 minutes of downtime per month. 99.99% allows 4 minutes. Cause is usually hosting incidents, plugin conflicts, or expired SSL.
Related terms
Uptime Monitoring
Automated checks that ping your site every few minutes and alert on downtime.
MTTR (Mean Time To Recovery)
The average time from the moment a site breaks to the moment it is fully restored.
SLA (Service Level Agreement)
A written promise of response time, resolution time, and what happens if we miss either.
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