iP or domain name lookup

vip.tzsearch.com Server iP：

Current resolution：

domain resolution record：

2019-09-23-----2019-09-28 156.232.158.57

2018-08-08-----2018-11-21 47.75.88.9

2018-11-21-----2018-11-21 218.247.83.95

2017-01-06-----2017-01-07 221.204.14.153

2017-01-06-----2017-01-06 222.73.144.179

2017-01-06-----2017-01-06 61.240.144.154

2017-01-06-----2017-01-06 125.88.190.25

2017-01-06-----2017-01-06 183.136.133.250

2017-01-06-----2017-01-06 202.102.85.92