5 tests were conducted on the operability of onsen.xii.jp over the 1 439 days starting on February 21, 2021. Last recorded uptime on January 2, 2025, returning a code 200, onsen.xii.jp was online 5 times from the complete assessments done. As of January 30, 2025, no inaccessibility incidents have been detected for onsen.xii.jp in all tests. As of January 30, 2025, all replies received indicate that none of them have an error status. Onsen.xii.jp's January 2, 2025, response was received in 6.524 seconds, contrasting its 5.432 seconds average response time.