According to the data, over a period of 2 307 days, hhu.de was checked 211 times for functioning starting on March 25, 2019. According to checks performed as of July 18, 2025, there have been no instances of the inoperability of hhu.de. As of July 18, 2025, all responses have been error-free according to the replies received. The average response time for hhu.de is 0.152 seconds, however the response time on July 17, 2025, was 0.228 seconds.