National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-gfs-004-files/202102/20210217/catalog.html

Dataset Size Last Modified
     Folder  20210217   --
         GFS Grid 4 2021-02-17 18:00 UTC fct:006.grb2 100.1 Mbytes 2021-02-17T21:41:19.363Z
         GFS Grid 4 2021-02-17 18:00 UTC fct:003.grb2 99.60 Mbytes 2021-02-17T21:41:19.329Z
         GFS Grid 4 2021-02-17 18:00 UTC fct:000.grb2 91.10 Mbytes 2021-02-17T21:41:18.869Z
         GFS Grid 4 2021-02-17 12:00 UTC fct:006.grb2 100.2 Mbytes 2021-02-17T21:42:42.363Z
         GFS Grid 4 2021-02-17 12:00 UTC fct:003.grb2 99.52 Mbytes 2021-02-17T21:41:22.765Z
         GFS Grid 4 2021-02-17 12:00 UTC fct:000.grb2 90.94 Mbytes 2021-02-17T21:41:20.844Z
         GFS Grid 4 2021-02-17 06:00 UTC fct:006.grb2 100.8 Mbytes 2021-02-17T09:40:44.460Z
         GFS Grid 4 2021-02-17 06:00 UTC fct:003.grb2 98.71 Mbytes 2021-02-17T09:40:44.344Z
         GFS Grid 4 2021-02-17 06:00 UTC fct:000.grb2 90.88 Mbytes 2021-02-17T09:40:45.757Z
         GFS Grid 4 2021-02-17 00:00 UTC fct:006.grb2 100.2 Mbytes 2021-02-17T09:40:47.357Z
         GFS Grid 4 2021-02-17 00:00 UTC fct:003.grb2 99.45 Mbytes 2021-02-17T09:40:44.366Z
         GFS Grid 4 2021-02-17 00:00 UTC fct:000.grb2 91.27 Mbytes 2021-02-17T09:40:45.771Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation