Developed a user subdomain registration and DNS management system within the is-a-dev/register repository, enabling personalized subdomains for users with seamless Vercel hosting integration. Focused on automating DNS provisioning and managing the full subdomain lifecycle, the work allowed users to quickly onboard and establish branded, production-ready domains. Leveraged Node.js and JavaScript to implement backend logic, while utilizing JSON for configuration and data management. The integration with Vercel ensured immediate deployment capabilities for each registered subdomain, streamlining the process from registration to live hosting. This feature enhanced user experience by simplifying domain management and accelerating the setup of custom web identities.