There were 0 uptime checks of sumnet.ne.jp conducted throughout the 0 day period beginning on January 26, 2025. Each check that took place as of January 26, 2025, revealed that sumnet.ne.jp was facing downtime or encountering problems. Tests conducted as of January 26, 2025, found no instances of sumnet.ne.jp becoming inoperable. As all of the responses received as of January 26, 2025, show, none of them have an error status. Recorded at 0 seconds, sumnet.ne.jp's January 26, 2025, response time differed from its 0.000 seconds average.