Serona.jp was checked for availability 3 times during a 1 221 day period beginning on September 7, 2021. Operational 3 times throughout the entirety of checks conducted, serona.jp's last recorded uptime on September 7, 2021, returned a code 200 response. Assessments conducted as of January 11, 2025, confirmed that serona.jp did not encounter any offline periods. It has been noted that as of January 11, 2025, there were no error responses based on the responses that were received. On September 7, 2021, the response time of serona.jp was 2.072 seconds, which is 1.571 seconds on average.