National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-gfs-004-files/202012/20201228/catalog.html

Dataset Size Last Modified
     Folder  20201228   --
         GFS Grid 4 2020-12-28 18:00 UTC fct:006.grb2 99.76 Mbytes 2020-12-29T09:40:49.373Z
         GFS Grid 4 2020-12-28 18:00 UTC fct:003.grb2 99.01 Mbytes 2020-12-28T21:40:50.279Z
         GFS Grid 4 2020-12-28 18:00 UTC fct:000.grb2 90.55 Mbytes 2020-12-28T21:40:52.187Z
         GFS Grid 4 2020-12-28 12:00 UTC fct:006.grb2 99.89 Mbytes 2020-12-28T21:40:50.157Z
         GFS Grid 4 2020-12-28 12:00 UTC fct:003.grb2 98.91 Mbytes 2020-12-28T21:40:59.133Z
         GFS Grid 4 2020-12-28 12:00 UTC fct:000.grb2 90.07 Mbytes 2020-12-28T21:40:49.816Z
         GFS Grid 4 2020-12-28 06:00 UTC fct:006.grb2 99.35 Mbytes 2020-12-28T09:41:14.144Z
         GFS Grid 4 2020-12-28 06:00 UTC fct:003.grb2 98.01 Mbytes 2020-12-28T09:41:12.694Z
         GFS Grid 4 2020-12-28 06:00 UTC fct:000.grb2 89.77 Mbytes 2020-12-28T09:41:18.043Z
         GFS Grid 4 2020-12-28 00:00 UTC fct:006.grb2 99.09 Mbytes 2020-12-28T09:42:53.796Z
         GFS Grid 4 2020-12-28 00:00 UTC fct:003.grb2 97.84 Mbytes 2020-12-28T09:41:43.875Z
         GFS Grid 4 2020-12-28 00:00 UTC fct:000.grb2 89.55 Mbytes 2020-12-28T09:41:17.445Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation