Worked on the is-a-dev/register repository to deliver a domain verification DNS configuration for viandevianto.is-a.dev, implementing both TXT and A records along with IP address mapping. Leveraged configuration management and domain management skills to automate the onboarding and verification process for new subdomains, reducing manual DNS intervention. Utilized JSON for versioned configuration changes, ensuring that infrastructure updates were clearly documented and easily maintainable. The approach followed infrastructure-as-code practices, enabling scalable and reliable domain verification workflows. This work accelerated subdomain onboarding, improved verification reliability, and reduced operational overhead by streamlining DNS configuration and automating key aspects of the verification process.