iP or domain name lookup

jf.99.com Server iP：

Current resolution：

domain resolution record：

2022-09-07-----2024-04-23 220.162.240.52

2019-05-13-----2019-10-12 220.162.240.53

2018-01-23-----2018-01-23 220.162.240.45

2017-09-05-----2017-12-16 121.207.254.92

2017-09-05-----2017-12-15 121.207.254.104

2017-09-05-----2017-09-05 121.207.254.99