The availability of d-and-i.jp has been tested 2 times in the past 1 192 days, beginning on August 27, 2021. D-and-i.jp maintained operability 2 times throughout all checks conducted, with the most recent uptime on September 6, 2021, returning a code 200. Evaluations of d-and-i.jp as of December 2, 2024, did not reveal any downtime incidents. As of December 2, 2024, no instances of an error status code were noted, according to the responses that were received. The September 6, 2021, response time of d-and-i.jp differed from its average, being 3.022 seconds against 2.901 seconds.