Service level agreement

Uptime guarantee

99Stack offers a 100% uptime guarantee via this Service Level Agreement based on our provider's node availability. Collectively, these guarantees may be referred to as the "SLA." This SLA is provided as a supplement to the terms of service you agreed to in becoming one of our customers, which is hereby incorporated by reference as an indispensable part of this SLA.

This uptime guarantee is applicable on a "per service item" basis and is not applied to your entire account. For example, if You have 50 servers with us, and one of those servers experiences downtime, any credit due to you under this uptime guarantee would be proportional to that one server's downtime and not your entire account with us. This uptime guarantee does not apply to the accessibility of our web property, DNS servers, API, or control panel.


The uptime guarantee only applies to network and instance availability during normal operation. The uptime guarantee does not apply to server-side software uptime. Any outage due to server software, operating systems, improper configurations, denial of service attack against your instance, instance suspension, instance paused/halted for any reason, or any other non network or non "host node" outage, for any reason and whether or not such outage is caused by our providers due to upgrading, troubleshooting or performing any other tasks, is not subject to this uptime guarantee. The guarantee does not apply when a scheduled maintenance occurs.

None of the guarantees in this SLA may be combined. For example, a hardware outage at our provider that also disrupts network activity will not qualify you for two separate refunds. If for example, a hardware outage was the basis for the connectivity loss, the entire event will count as one single outage for the purpose of determining whether or not a refund will be issued.

Outage refund

In accordance with the procedure outlined below, you must initiate a support ticket and request a refund to be applied to your account. Merely initiating a support ticket related to an outage will not result in any credit to your account. Initiating a support ticket and requesting a credit is what triggers an event for any potential refund. However, 99Stack must still determine, whether or not an eligible outage has occurred. If we determine that an eligible outage has occurred, then the ticket you generated will be used to generate a refund based on any downtime based on the values found in below table.

Outage time frame Credit amount
Less than 9 minutes 12 Hours
10 to 59 minutes 24 Hours
60 to 119 minutes 48 Hours
120 to 239 minutes 120 Hours
240 to 419 minutes 240 Hours
More than 420 minutes 730 Hours (1 Month)

For more information, please contact 99Stack by email at support@99stack.com.

Created at: 17 September 2017

Last modified at: 18 May 2018