A simple SLA calculator inspired by uptime.is. Calculate SLA percentages for various reporting periods based on downtime duration.

Visit downtime.is followed by a duration to calculate SLA percentages:

• downtime.is/100 - 100 seconds of downtime
• downtime.is/1h - 1 hour of downtime
• downtime.is/30m - 30 minutes of downtime
• downtime.is/2d12h - 2 days and 12 hours of downtime

For 1 hour of downtime:

• Daily reporting: 95.8333%
• Weekly reporting: 99.4048%
• Monthly reporting: 99.8620%
• Quarterly reporting: 99.9540%
• Yearly reporting: 99.9885%

• Go 1.24 or higher
• Docker and Docker Compose

make server  # Run the server locally
make test    # Run tests