Uptime / SLA calculator
Turn an uptime percentage (99.9%, 99.99%, three nines…) into the downtime it allows per day, week, month, and year.
Free reliability tools.
Quick, no-signup calculators for SLAs and downtime. Built by the team behind second-by-second monitoring.
Start monitoring in under a minute
Free forever, no credit card. Upgrade when you need finer intervals.