Simran Sian delivered production DNS configuration changes for HaloITSM within the hmcts/azure-public-dns repository, focusing on updating CNAME records to support new service endpoints while maintaining service stability. Using YAML and applying DNS management and DevOps practices, Simran introduced a new itsupport mapping and domain validation CNAME, then executed a controlled rollback to the previous configuration to ensure minimal disruption. The work emphasized traceability and change control, with each step validated to protect service availability. This approach enabled a smooth transition for HaloITSM’s DNS infrastructure, aligning technical deliverables with business needs for accessibility and operational continuity during the migration.