iP or domain name lookup

w3.ibm.com Server iP：

Current resolution：

domain resolution record：

2021-08-31-----2021-09-30 45.11.57.36

2020-12-05-----2020-12-09 52.128.23.153

2020-11-23-----2020-11-26 69.172.201.208

2019-12-09-----2019-12-11 79.124.78.105

2019-12-01-----2019-12-01 79.124.78.101

2016-01-10-----2016-10-01 221.192.153.41

2016-08-18-----2016-10-01 111.175.221.58

2016-01-10-----2016-09-14 221.204.244.36

2016-08-09-----2016-08-14 202.100.68.117

2016-01-10-----2016-08-04 120.192.83.162

2016-04-16-----2016-07-28 113.12.83.4

2016-06-08-----2016-06-16 180.153.103.224

2016-01-10-----2016-06-08 123.129.254.19

2016-01-10-----2016-04-25 218.30.64.194

2016-04-07-----2016-04-24 202.102.110.203

2016-01-28-----2016-01-28 123.129.254.17