During July 2025, Tokido updated the ddbj/www repository’s documentation to enforce HTTPS for genome sequence URLs, addressing security and compliance requirements. By systematically replacing HTTP with HTTPS in Markdown files, Tokido improved data protection and aligned the documentation with modern web standards, specifically targeting the mitigation of man-in-the-middle risks. The work focused exclusively on documentation, ensuring that the change carried minimal deployment risk while delivering a tangible security benefit. Tokido’s approach demonstrated attention to detail in risk management and traceability, leveraging skills in documentation and web standards to enhance the repository’s reliability without altering any underlying application code.