Since September 5, 2021, the operability of jsso.jp has been checked 3 times over the past 1 412 days. The website jsso.jp was confirmed functional 3 times from total checks performed, latest proven on January 19, 2025, by a 200 status response. As of July 18, 2025, jsso.jp has not experienced any downtime in assessments that have been completed. As of July 18, 2025, there are no responses indicating an error status based on all received responses. Jsso.jp responded in 2.866 seconds on January 19, 2025, which contrasted its 2.076 seconds average response time.