iP or domain name lookup

nos.ns1.ff.avast.com Server iP：

Current resolution：

domain resolution record：

2024-02-09-----2024-02-10 34.148.249.115

2024-02-10-----2024-02-10 34.141.96.57

2024-02-10-----2024-02-10 35.205.21.180

2024-02-10-----2024-02-10 34.168.7.183

2024-02-10-----2024-02-10 34.22.130.91

2024-02-10-----2024-02-10 35.230.116.55

2024-02-10-----2024-02-10 34.107.12.146

2024-02-09-----2024-02-09 35.237.122.103

2024-02-09-----2024-02-09 34.159.16.223

2024-02-09-----2024-02-09 34.159.193.21

2020-06-06-----2021-06-02 5.62.53.131

2020-06-06-----2021-06-02 69.94.68.55

2020-06-23-----2021-06-02 5.62.54.89

2020-11-20-----2021-06-02 5.62.53.53

2020-12-10-----2021-06-02 5.62.54.83

2020-05-18-----2021-04-26 5.62.54.63

2020-08-20-----2021-04-26 5.62.54.29

2020-05-18-----2021-04-21 69.94.68.37

2020-11-20-----2020-11-20 69.94.68.63

2020-06-23-----2020-11-08 5.62.53.11

2020-06-06-----2020-09-18 5.62.54.73

2020-07-18-----2020-09-18 5.62.54.31

2020-09-18-----2020-09-18 5.62.54.35

2020-09-18-----2020-09-18 5.62.54.42

2020-07-18-----2020-08-20 5.62.53.18

2020-06-23-----2020-06-23 69.94.68.90

2020-05-18-----2020-05-18 5.62.53.104