From February 26, 2021, up until now, d-card.jp has been checked for availability 2 times over a period of 1 361 days. During the course of the checks, d-card.jp was online 2 times, the last uptime occurred on July 13, 2022, and a code 200 was returned. During inspections, as of November 18, 2024, no instances of d-card.jp being unavailable were found. The results of the replies received as of November 18, 2024, confirmed that no responses had an error status. The response time noted for d-card.jp was 6.889 seconds on July 13, 2022, against a 5.330 seconds average.