0 times in the last 0 days, from March 1, 2025, to the present, cer.sdu.edu.cn's accessibility has been checked. Throughout the evaluations conducted as of March 1, 2025, cer.sdu.edu.cn was found to be non-functional or inaccessible. Tests carried out on cer.sdu.edu.cn showed that there were no instances of inactivity as of March 1, 2025. No errors were identified in any of the obtained responses as of March 1, 2025, according to the received replies. Cer.sdu.edu.cn, on March 1, 2025, had a response time of 0 seconds, compared to its average of 0.000 seconds.