Uptime Monitoring

How is availability percentage calculated?

Availability percentage shows how often your site was working during a chosen time period.

The calculation

Availability = (Successful checks / Total checks) × 100

Time periods

InfraBeacon shows availability for:

  • 24-hour - Last day
  • 7-day - Last week
  • 30-day - Last month

Understanding the numbers

  • 99.9% - About 1.4 minutes of downtime per day, or 43 minutes per month
  • 99.5% - About 7 minutes of downtime per day, or 3.6 hours per month
  • 99.0% - About 14 minutes of downtime per day, or 7.2 hours per month
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