iP or domain name lookup

ipv6.bjtu.edu.cn Server iP：

Current resolution：

domain resolution record：

2019-09-25-----2024-02-29 159.69.186.9

2024-02-23-----2024-02-23 168.119.245.137

2024-01-25-----2024-01-25 162.55.172.212

2020-12-04-----2020-12-14 52.128.23.153

2020-11-19-----2020-12-01 69.172.201.208

2019-07-30-----2020-04-01 95.216.161.60

2019-10-29-----2019-10-29 159.69.83.207

2016-02-19-----2019-03-15 202.112.154.246