Starting July 28, 2019, dnr.lu's availability was tested 3 times over the following 2 011 day period. On 3 occasions throughout conducted checks, dnr.lu operated successfully, affirming its most recent uptime on September 10, 2022, with a code 200. During inspections, no instances of unavailability were found for dnr.lu as of January 28, 2025. As of January 28, 2025, all received responses have been confirmed to have no error status. On September 10, 2022, 0.241 seconds was dnr.lu's response time, while 0.134 seconds is the average.