From June 28, 2021, forward over the next 1 239 days, there were 4 checks done on 91zsedu.cn's uptime. During the course of the checks, 91zsedu.cn was online 4 times, the last uptime occurred on August 28, 2021, and a code 200 was returned. As of November 18, 2024, no instances of unavailability were detected for 91zsedu.cn during inspections. As of November 18, 2024, there are no responses indicating an error status based on all received responses. A response from 91zsedu.cn was recorded at 2.248 seconds on August 28, 2021, differing from 2.381 seconds on average.