On March 14th, 2024 at 11:34 am EST, Tucows’ Domains DNS platform stopped responding to requests due to a data inconsistency between our DNS server and the underlying database.

Tucows continuously improves its DNS platform and its services. During a routine software update a data issue was identified that affected domain resolution on our System DNS platform.

DNS & Network Engineering teams identified the issue on the spot and started mitigating the problem. When it became clear that resolution of the issue would be time consuming the engineering team initiated a fail-over procedure to resolve the issue which was fully completed at 1:07 pm EST.

We are taking multiple steps to prevent a recurrence and improve reliability in the future.

• Improve tooling to identify and resolve possible data race conditions.
• Improve fail-over process to initiate faster resolution.

We apologize for the inconvenience this service disruption may have caused.

Thank you,

Tucows Domains Operations Team