From December 21, 2021, onward for the next 1 118 days, kaiyoukan.jp was checked for availability 5 times. Out of all the tests carried out, kaiyoukan.jp was accessible 5 times, the last instance being January 5, 2025, when a code 200 was received. Based on checks made as of January 12, 2025, kaiyoukan.jp did not experience any unavailability incidents. As all of the responses received as of January 12, 2025, show, none of them have an error status. Records indicate a 2.027 seconds kaiyoukan.jp response time on January 5, 2025, compared to 2.302 seconds on average.