iP or domain name lookup

layer7-security.net Server iP：

Current resolution：

domain resolution record：

2021-08-20-----2021-08-20 172.67.199.18

2021-08-20-----2021-08-20 104.21.34.64

2021-04-15-----2021-07-06 172.67.154.82

2021-04-15-----2021-07-06 104.21.48.158

2020-11-29-----2020-11-29 104.18.32.58

2020-11-29-----2020-11-29 104.18.33.58

2020-11-29-----2020-11-29 172.67.210.117

2020-01-09-----2020-01-21 104.24.127.177

2020-01-09-----2020-01-21 104.24.126.177

2019-12-21-----2019-12-21 104.27.129.118

2019-12-21-----2019-12-21 104.27.128.118

2019-08-09-----2019-10-06 104.31.75.237

2019-08-09-----2019-10-06 104.31.74.237

2019-08-09-----2019-08-09 104.31.235.6

2019-08-09-----2019-08-09 104.31.234.6