iP or domain name lookup

task.www.sogou.com Server iP：

Current resolution：

domain resolution record：

2021-01-31-----2022-06-18 49.7.115.60

2020-11-10-----2021-01-01 49.7.115.48

2019-05-07-----2020-09-06 111.202.102.58

2019-05-07-----2020-06-05 36.110.170.50

2019-05-07-----2019-10-02 111.13.94.17

2017-04-01-----2018-01-17 106.120.173.5

2017-04-01-----2018-01-17 123.126.68.46

2017-04-01-----2018-01-17 123.126.113.47

2017-04-01-----2018-01-17 111.13.96.221

2017-04-01-----2017-09-02 106.38.241.49