iP or domain name lookup

yacs.me Server iP：

Current resolution：

domain resolution record：

2021-10-12-----2021-10-14 209.126.123.11

2021-10-14-----2021-10-14 78.41.204.26

2021-09-27-----2021-10-12 209.126.123.12

2021-10-12-----2021-10-12 78.41.204.27

2021-10-12-----2021-10-12 78.41.204.39

2021-10-11-----2021-10-11 78.41.204.37

2021-09-27-----2021-09-27 78.41.204.29

2018-04-11-----2018-04-12 104.18.59.194

2018-04-11-----2018-04-11 104.18.58.194