In the time frame of 1 372 days from February 18, 2021, records indicate 5 checks were done on apen.de's accessibility. There were 3 instances of apen.de uptime that were recorded from the tests, including a code 200 result on February 22, 2021. Of all evaluations done, apen.de was offline for 2 of them, representing 40.00%, with the most recent on February 19, 2021. No responses with an error status have been reported as of November 22, 2024, according to all received replies. On February 22, 2021, apen.de's response time of 0.131 seconds differed from its average of 0.200 seconds.