Continuously record 24-hour, 7-day, and 30-day API availability. Track error budgets, detect threshold breaches, and prove compliance with transparent SLA ledgers.
Maximum permitted downtime before breaching contract availability.
| SLA Target | Daily Downtime | Weekly Downtime | Monthly Downtime | Yearly Downtime |
|---|---|---|---|---|
| 99.0% | 14m 24s | 1h 40m | 7h 18m | 3d 15h |
| 99.9% (3 Nines) | 1m 26s | 10m 04s | 43m 49s | 8h 45m |
| 99.95% | 43.2s | 5m 02s | 21m 54s | 4h 22m |
| 99.99% (4 Nines) | 8.6s | 1m 00s | 4m 22s | 52m 35s |
| 99.999% (5 Nines) | 0.86s | 6.0s | 26.3s | 5m 15s |
Every probe execution is timestamped and bucketed into hourly and daily metrics. When an incident is verified via multi-region quorum consensus, downtime seconds are deducted from your error budget in real-time.
Everything you need to know about API uptime, SLA calculations, and monitoring with Uptara.
SLA percentage is calculated as: Uptime % = ((Total Scheduled Time - Total Outage Duration) / Total Scheduled Time) * 100. Scheduled maintenance windows can be excluded if pre-arranged.
Calculate allowed downtime per day, week, month, and year for any custom SLA percentage.
Engineering guide on calculating SLA formulas, MTTR, MTTD, and error budget burn rates.
Publish 90-day SLA histograms and real-time incident reports on your custom CNAME.