iP or domain name lookup

zj.a5.net Server iP：

Current resolution：

domain resolution record：

2020-08-03-----2026-02-26 180.76.100.81

2022-10-20-----2022-10-20 39.109.113.156

2019-07-12-----2020-04-19 180.76.157.113

2017-12-14-----2018-03-15 180.76.134.211

2017-12-14-----2017-12-14 180.76.145.159

2017-10-11-----2017-10-11 42.156.141.13

2016-11-17-----2016-11-18 59.34.197.131