Resolved
Our upstream service provider has resolved the issue. The impact ended at 12:19 pm UTC. The incident is now resolved.
Update
Our upstream service provider has confirmed the issue and investigating from their end. The issues are identified to be intermittent and we're awaiting a resolution from them.
Update
Engineers are continuing to investigate and are working with our upstream service provider to identify a resolution path. The service provider informed us that they are aware of the issue, and actively working on it.
We'll provide the next update within next 60 minutes, or as soon as one is available.
Issue
Engineers have identified DNS resolution issues for newly created apps on Heroku and are currently investigating the root cause.