iP or domain name lookup

mmu01.com Server iP：

Current resolution：

domain resolution record：

2023-06-19-----2023-08-07 104.255.229.48

2023-08-04-----2023-08-07 0.0.0.0

2023-03-01-----2023-03-01 104.255.229.217

2022-05-30-----2022-05-30 104.255.229.86