According to the data, over a period of 2 200 days, hhu.de was checked 203 times for functioning starting on March 25, 2019. According to checks performed as of April 2, 2025, there have been no instances of the inoperability of hhu.de. As of April 2, 2025, all responses have been error-free according to the replies received. The average response time for hhu.de is 0.150 seconds, however the response time on March 20, 2025, was 0.120 seconds.