The availability of ddo.jp has been tested 5 times in the past 1 978 days, beginning on July 2, 2019. Out of every conducted check, ddo.jp was up 5 times, the latest being on September 2, 2021, responding with a code 200. Tests carried out on ddo.jp showed that there were no instances of inactivity as of November 30, 2024. The replies that have been received as of November 30, 2024, indicate that all of the responses have been reported as error-free. Against an average of 1.224 seconds, ddo.jp's response on September 2, 2021, was received in 0.637 seconds.