The records show that jc-21.ac.jp's functioning was analyzed 4 times within the 1 217 day time frame beginning September 30, 2021. During all of the analyses that were done, jc-21.ac.jp was reachable 3 times, it was last accessed on July 29, 2024, with a code 200 returned. Of all tests carried out, jc-21.ac.jp was offline during 1 of them, equivalent to 25.00%, with the latest on September 30, 2021. As of January 30, 2025, no errors have been encountered according to all received responses. While averaging 2.934 seconds, jc-21.ac.jp responded in 2.254 seconds on July 29, 2024.