Since March 2, 2021, 12 times, the sm.cn availability has been analyzed over the course of 1 424 days. Sm.cn consistently has shown functionality 12 times, with the latest recorded uptime on December 30, 2024, resulting in a code 200. Sm.cn had zero instances of inaccessibility, according to tests conducted as of January 25, 2025. Based on the responses received, it has been confirmed that there were no errors as of January 25, 2025. Data indicates sm.cn responded in 2.290 seconds on December 30, 2024, against its 5.065 seconds average.