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Github doesn't claim "five nines of reliability".

There SLA is for 99.9% ("three nines").

Which equates to:

  Daily: 1m 26s
  Weekly: 10m 4.8s
  Monthly: 43m 28s
  Quarterly: 2h 10m 24s
  Yearly: 8h 41m 38s
https://github.com/customer-terms/github-online-services-sla


So they don't even manage to stay within the three nines.

Today they already spent their whole quarterly budget. With the incidents April and May they have already exceeded their whole yearly budget.


They are aiming to maintain a single 9 reliability.




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