iP or domain name lookup

yuan-len.iask.in Server iP：

Current resolution：

domain resolution record：

2020-04-27-----2020-04-27 61.142.176.23

2019-12-07-----2019-12-07 180.106.250.240

2016-11-08-----2016-11-09 58.208.200.205

2016-11-04-----2016-11-05 49.84.217.103

2016-10-26-----2016-10-27 121.227.76.141

2016-10-27-----2016-10-27 122.228.19.57

2016-10-27-----2016-10-27 58.211.125.50

2016-10-26-----2016-10-26 221.204.244.36

2016-10-26-----2016-10-26 202.102.110.203

2016-10-26-----2016-10-26 221.192.153.41