10 tests were conducted on the uptime of hd4.in in the 809 days following September 3, 2022. Operational 10 times during the total tests, hd4.in's most recent uptime on September 22, 2024, returned a code 200. All inspections of hd4.in indicated no inoperability issues as of November 21, 2024. As of November 21, 2024, it was noted that every response that was received was error-free. Hd4.in's September 22, 2024, response was received in 0.100 seconds, contrasting its 0.119 seconds average response time.