In the timespan of 2 003 days from June 11, 2019, there were 1 availability checks completed for oopper.de. Oopper.de was accessible 1 times, the last instance being on June 11, 2019, when a code 200 was received, out of the total checks performed. Assessments done as of December 5, 2024, showed no instances of oopper.de non-functionality. As of December 5, 2024, all received replies have confirmed that there are no errors in the responses. A response time of 0.308 seconds, with an average of 0.308 seconds, was recorded for oopper.de on June 11, 2019.