iP or domain name lookup

10year.21gmail.com Server iP：

Current resolution：

domain resolution record：

2017-07-29-----2019-09-28 162.159.208.80

2019-08-06-----2019-09-28 117.34.14.238

2019-08-06-----2019-09-28 42.236.94.238

2019-08-23-----2019-09-28 125.39.174.238

2019-08-06-----2019-08-06 162.159.209.80

2017-07-29-----2017-07-29 116.31.127.239

2017-07-29-----2017-07-29 58.211.137.239

2017-07-29-----2017-07-29 59.51.81.250

2017-07-29-----2017-07-29 42.236.94.239