5 tests were conducted on the operability of d-marc.de over the 1 456 days starting on March 15, 2021. Most recently on February 21, 2025, with a 200 status code, d-marc.de was accessible 5 times, out of every test performed. D-marc.de had zero instances of inaccessibility, according to tests conducted as of March 11, 2025. As of March 11, 2025, all responses have been confirmed to be error-free, according to received replies. For d-marc.de, 0.024 seconds was the response time on February 21, 2025, with an average of 0.043 seconds.