iP or domain name lookup

jikexueyuan.com Server iP：

Current resolution：

domain resolution record：

2022-03-09-----2022-03-09 72.14.185.43

2022-03-08-----2022-03-08 45.79.19.196

2022-03-08-----2022-03-08 45.56.79.23

2019-12-15-----2021-09-04 203.107.43.165

2018-01-08-----2019-07-12 42.156.141.13

2017-09-15-----2017-09-16 54.222.132.67

2017-03-22-----2017-03-22 54.222.234.154

2017-03-22-----2017-03-22 117.25.140.20

2016-11-27-----2016-11-28 119.254.211.135