iP or domain name lookup

yangchao.picp.net Server iP：

Current resolution：

domain resolution record：

2021-01-05-----2022-09-12 120.27.251.182

2022-09-09-----2022-09-12 111.192.79.5

2021-01-26-----2022-03-04 0.0.0.0

2021-03-08-----2021-03-08 222.129.197.13

2021-02-02-----2021-02-02 123.118.136.92

2021-01-29-----2021-01-29 221.216.35.220

2021-01-25-----2021-01-25 221.216.37.11

2021-01-05-----2021-01-19 174.128.255.252

2021-01-10-----2021-01-10 222.129.194.84

2021-01-05-----2021-01-06 111.197.5.75

2021-01-05-----2021-01-05 123.115.218.112