Actually it's only two nine's, which means Slack can be down for 52 minutes every year. > 1. We purposely made our commitment to the ‘fourth 9’, viz. 99.99% up

Actually it's only two nine's, which means Slack can be down for 52 minutes every year. > 1. We purposely made our commitment to the ‘fourth 9’, viz. 99.99% uptime guarantee in contrast to the typical SLAs which tend to offer 99.90%. We believe that extra availability makes a difference: the ‘fourth 9’ is important when your team relies on Slack every day. You need Slack at least 9,999 out of every 10,000 minutes. [1] [1]: https://get.slack.help/hc/en-us/articles/204113126-Service-Level-Agreements-SLA-#001 https://get.slack.help/hc/en-us/articles/204113126-Service-L...