Over the 1 166 days starting September 8, 2021, ken-on.co.jp underwent 2 functioning checks, according to the data. Throughout the course of all assessments, ken-on.co.jp has been up 2 times, with the most recent code 200 response occurring on September 14, 2021. As of November 18, 2024, conducted checks indicate that there were no instances of ken-on.co.jp being unavailable. It was noted from the responses received that there were no error statuses recorded as of November 18, 2024. In contrast to the average of 4.405 seconds, ken-on.co.jp's response time on September 14, 2021, was 4.603 seconds.