Uptime and downtime with 99.91 % SLA
2025-02-04: I am happy to announce public release of Pyng, a boring and finished uptime monitoring and alerting system.
[ simple / flexible / compare / reverse / about / API / monitoring ]
SLA level of 99.91 % uptime/availability results in the following periods of allowed downtime/unavailability:
- Daily: 1m 18s
- Weekly: 9m 4.3s
- Monthly: 39m 7.3s
- Quarterly: 1h 57m 22s
- Yearly: 7h 49m 28s
Direct link to the page with these results: uptime.is/99.91
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.