iP or domain name lookup

lanxess.us Server iP：

Current resolution：

domain resolution record：

2019-07-17-----2019-07-17 18.196.235.148

2019-07-17-----2019-07-17 52.59.82.213

2017-04-06-----2017-04-06 35.156.249.161

2017-04-06-----2017-04-06 52.58.69.152

2017-03-19-----2017-03-20 35.156.219.199

2017-03-19-----2017-03-20 52.28.30.83