Over the previous 1 395 day period beginning on January 30, 2021, there were 2 checks done on ub.uni-duesseldorf.de's availability. In 2 of the tests that were conducted, ub.uni-duesseldorf.de returned a code 200 in response, the most recent uptime occurring on January 30, 2021. Tests conducted as of November 25, 2024, found no instances of ub.uni-duesseldorf.de becoming inoperable. All responses obtained confirm that, as of November 25, 2024, there were no error statuses detected. The response time of ub.uni-duesseldorf.de on January 30, 2021, was compared to the average by 0.083 seconds instead of 0.127.