Palzin Team
Availability (uptime) is calculated as a time a given service was unavailable over a specified period of time. For example to reach 99.9% availability over a period of a month, the maximum allowed downtime is 43.2 minutes.
The availability table below shows how much downtime is permitted to achieve a desired availability level.
| Availability level | Allowed unavailability window | |||||
|---|---|---|---|---|---|---|
| (uptime) | per year | per quarter | per month | per week | per day | per hour |
| 90% | 36.5 days | 9 days | 3 days | 16.8 hours | 2.4 hours | 6 minutes |
| 95% | 18.25 days | 4.5 days | 1.5 days | 8.4 hours | 1.2 hours | 3 minutes |
| 99% | 3.65 days | 21.6 hours | 7.2 hours | 1.68 hours | 14.4 minutes | 36 seconds |
| 99.5% | 1.83 days | 10.8 hours | 3.6 hours | 50.4 minutes | 7.20 minutes | 18 seconds |
| 99.9% | 8.76 hours | 2.16 hours | 43.2 minutes | 10.1 minutes | 1.44 minutes | 3.6 seconds |
| 99.95% | 4.38 hours | 1.08 hours | 21.6 minutes | 5.04 minutes | 43.2 seconds | 1.8 seconds |
| 99.99% | 52.6 minutes | 12.96 minutes | 4.32 minutes | 60.5 seconds | 8.64 seconds | 0.36 seconds |
| 99.999% | 5.26 minutes | 1.30 minutes | 25.9 seconds | 6.05 seconds | 0.87 seconds | 0.04 seconds |
Updated on March 7, 2023
We notify you when your website experiences downtime
Stay informed with a comprehensive infrastructure monitoring platform
Check Uptime, Ping, Ports, SSL, and more.
Receive incident alerts via Slack, SMS, and phone.
Easily schedule on-call duties.
Create a free status page on your own domain.
It takes less than a minutes to setup your first monitoring.
