iP or domain name lookup

wiki.renren.com Server iP：

Current resolution：

domain resolution record：

2017-09-03-----2021-03-15 120.133.2.242

2017-09-03-----2021-03-15 120.133.2.243

2017-12-12-----2021-03-15 120.133.2.241

2017-09-03-----2018-01-18 103.235.252.231

2017-12-12-----2018-01-18 103.235.252.233

2017-12-12-----2018-01-18 103.235.252.212

2017-09-03-----2017-09-03 103.235.252.232

2017-09-03-----2017-09-03 103.235.252.211