Worked on the PowerDNS/pdns repository to enhance the flexibility of health checks by implementing a configurable HTTP status code option for the ifurlup() function. This feature allows operators to specify which HTTP status code should be considered healthy, rather than relying solely on the default 200 OK, improving the accuracy of service monitoring. The development process involved backend programming in C++ and Python, updating RST documentation to guide users on the new configuration, and creating regression tests to ensure reliable handling of various status codes. These changes improved health-check reliability and provided clearer operational expectations for networked environments.