National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-gfs-004-files/202008/20200801/catalog.html

Dataset Size Last Modified
     Folder  20200801   --
         GFS Grid 4 2020-08-01 18:00 UTC fct:006.grb2 99.06 Mbytes 2020-08-02T08:40:30.886Z
         GFS Grid 4 2020-08-01 18:00 UTC fct:003.grb2 98.71 Mbytes 2020-08-02T08:40:30.812Z
         GFS Grid 4 2020-08-01 18:00 UTC fct:000.grb2 90.60 Mbytes 2020-08-02T08:40:30.878Z
         GFS Grid 4 2020-08-01 12:00 UTC fct:006.grb2 99.79 Mbytes 2020-08-01T20:40:43.305Z
         GFS Grid 4 2020-08-01 12:00 UTC fct:003.grb2 98.46 Mbytes 2020-08-01T20:40:41.195Z
         GFS Grid 4 2020-08-01 12:00 UTC fct:000.grb2 90.59 Mbytes 2020-08-01T20:40:33.525Z
         GFS Grid 4 2020-08-01 06:00 UTC fct:006.grb2 99.90 Mbytes 2020-08-01T20:40:41.017Z
         GFS Grid 4 2020-08-01 06:00 UTC fct:003.grb2 98.64 Mbytes 2020-08-01T20:40:41.275Z
         GFS Grid 4 2020-08-01 06:00 UTC fct:000.grb2 91.05 Mbytes 2020-08-01T20:40:39.617Z
         GFS Grid 4 2020-08-01 00:00 UTC fct:006.grb2 100.4 Mbytes 2020-08-01T08:40:33.930Z
         GFS Grid 4 2020-08-01 00:00 UTC fct:003.grb2 99.92 Mbytes 2020-08-01T08:40:33.978Z
         GFS Grid 4 2020-08-01 00:00 UTC fct:000.grb2 90.78 Mbytes 2020-08-01T08:40:34.291Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation