There have been 8 checks done on usako.co.jp's accessibility in the 1 502 day period from February 19, 2021, up until today. Usako.co.jp consistently has shown functionality 7 times, with the latest recorded uptime on July 26, 2021, resulting in a code 200. No periods of inoperability were observed for usako.co.jp across all assessments made as of April 2, 2025. Within the 1 responses, code 404 was identified as the latest error on January 13, 2025. Usako.co.jp's January 13, 2025, response time, 2.254 seconds, differed from the 2.184 seconds average.