Developed and delivered a configuration-driven subdomain provisioning feature for the is-a-dev/register repository, focusing on the Shubhom subdomain. The work centered on implementing a new JSON-based configuration that defines both the owner and DNS records, streamlining the process of DNS setup and reducing manual intervention. Leveraging skills in backend development and API integration, the developer ensured that subdomain onboarding became faster and more auditable. The approach improved governance and traceability of DNS configurations by documenting changes through version control. This contribution demonstrated effective use of JSON for infrastructure management and addressed the need for scalable, maintainable DNS configuration workflows.