Uptime and downtime with 98.9 % SLA

2025-02-04: I am happy to announce public release of Pyng, a boring and finished uptime monitoring and alerting system.

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Agreed SLA level: % (enter SLA level and hit the <enter> key)

SLA level of 98.9 % uptime/availability results in the following periods of allowed downtime/unavailability:

• Daily: 15m 50s
• Weekly: 1h 50m 53s
• Monthly: 8h 2m 7.2s
• Quarterly: 1d 6m 22s
• Yearly: 4d 25m 26s

Direct link to the page with these results: uptime.is/98.9

The SLA calculations assume a requirement of continuous uptime (i.e. 24/7 all year long) with additional approximations as described in the source. uptime.is was originally implemented in newLISP, which had powered uptime and downtime calculations for more than a decade.

For convenience, there are special CEO and SEO friendly links for N nines: three nines, four nines, five nines, six nines etc.