iP or domain name lookup

pingyin.sougou.com Server iP：

Current resolution：

domain resolution record：

2019-07-24-----2020-11-28 221.122.82.30

2019-06-20-----2019-06-20 79.124.78.120

2019-03-04-----2019-03-04 218.106.246.186

2016-02-05-----2017-12-08 210.51.12.173

2016-03-06-----2016-06-04 221.192.153.41

2016-03-06-----2016-06-04 218.30.64.194

2016-06-04-----2016-06-04 123.129.254.17

2016-04-13-----2016-04-13 202.102.110.203

2016-03-06-----2016-03-06 123.129.254.13

2016-03-06-----2016-03-06 221.204.244.36