Cer.com.cn passed 1 uptime tests within the timeframe of 1 131 days beginning on October 27, 2021. Reports from all checks indicate that cer.com.cn was either inaccessible or encountered problems as of December 2, 2024. Out of all the times cer.com.cn was checked, it was unreachable for 1 of them, equivalent to 100.00%, including as recently as October 27, 2021. As of December 2, 2024, all received responses have been confirmed to have no error status. Cer.com.cn responded in — seconds on October 27, 2021, contrasting its 0.001 seconds average response time.