iP or domain name lookup

u21601574.ct.sendgrid.net Server iP：

Current resolution：

domain resolution record：

2025-11-06-----2025-11-29 54.178.169.161

2025-11-06-----2025-11-29 54.151.148.118

2025-11-29-----2025-11-29 35.155.190.75

2025-11-29-----2025-11-29 176.34.126.149

2025-11-06-----2025-11-06 50.112.255.11

2025-11-06-----2025-11-06 3.79.169.2

2023-11-09-----2025-03-29 167.89.115.147

2023-12-03-----2025-03-29 167.89.123.122

2025-01-07-----2025-03-29 167.89.115.35

2025-01-07-----2025-01-07 167.89.118.23

2025-01-07-----2025-01-07 167.89.115.26

2023-11-09-----2024-06-13 167.89.115.121

2023-11-09-----2024-06-13 167.89.118.35

2023-11-09-----2024-06-13 167.89.118.118

2023-12-03-----2024-06-13 167.89.123.147

2023-12-03-----2024-06-13 167.89.123.16

2023-11-09-----2024-04-13 167.89.118.28

2023-11-09-----2024-04-13 167.89.115.54