iP or domain name lookup

zftest.iok.la Server iP：

Current resolution：

domain resolution record：

2021-02-07-----2021-02-07 121.225.152.93

2021-01-28-----2021-01-28 49.77.59.59

2021-01-28-----2021-01-28 120.27.251.182

2019-12-14-----2019-12-14 121.225.155.34

2019-07-14-----2019-07-14 222.95.181.234

2017-10-28-----2017-10-29 49.65.202.139