Data analysis indicates cen.co.jp had 3 operability tests done during the 1 254 days following June 20, 2021. Out of all the tests that were done, cen.co.jp was accessed 3 times, with the most recent 200 status code response occurring on October 2, 2021. As of November 25, 2024, assessments had not shown any instances of cen.co.jp's non-functionality. As of November 25, 2024, no responses have been recorded with an error status based on all replies that have been received. Cen.co.jp replied in 1.777 seconds on October 2, 2021, differing from its 2.835 seconds average response time.