Free reliability tool
Uptime calculator
Convert uptime percentages into real downtime so you can understand what 99.9% or 99.99% actually means.
Calculate downtime per day, month, and year
Useful for SLA and reliability planning
Use ReleaseTraq to detect downtime before it becomes invisible loss
%
Downtime per day
At 99.9% uptime
1m
Downtime per month
At 99.9% uptime
43m
Downtime per year
At 99.9% uptime
8h 46m
Rule of thumb
99.9% still allows about 8h 46m of downtime per year. Small SaaS teams need alerts fast enough to act before users lose trust.Review once
Free tools are useful for a quick evidence check before a scope review or client handoff.
Document scope
Release-critical URLs should be grouped into business flows before acceptance decisions are made.
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