From June 14, 2021, up to the current date, 1 557 days total, en.tongji.edu.cn was checked for operability 7 times. Analyses reveal en.tongji.edu.cn had 6 instances of uptime from checks conducted, the latest on June 1, 2025, with a 200 code. 14.29% of evaluations, equating to 1 events, resulted in en.tongji.edu.cn being unavailable, and the most recent downtime was on January 8, 2022. Based on the responses received, there are no instances of error status codes recorded as of September 19, 2025. 1.977 seconds was en.tongji.edu.cn's response time on June 1, 2025, while the average response time is 2.136 seconds.