National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-gfs-004-files/202107/20210730/catalog.html

Dataset Size Last Modified
     Folder  20210730   --
         GFS Grid 4 2021-07-30 18:00 UTC fct:006.grb2 164.2 Mbytes 2021-07-31T08:40:26.100Z
         GFS Grid 4 2021-07-30 18:00 UTC fct:003.grb2 163.1 Mbytes 2021-07-31T08:40:20.177Z
         GFS Grid 4 2021-07-30 18:00 UTC fct:000.grb2 153.1 Mbytes 2021-07-31T08:40:24.050Z
         GFS Grid 4 2021-07-30 12:00 UTC fct:006.grb2 163.2 Mbytes 2021-07-30T20:40:17.282Z
         GFS Grid 4 2021-07-30 12:00 UTC fct:003.grb2 162.1 Mbytes 2021-07-30T20:40:16.358Z
         GFS Grid 4 2021-07-30 12:00 UTC fct:000.grb2 151.6 Mbytes 2021-07-30T20:40:16.711Z
         GFS Grid 4 2021-07-30 06:00 UTC fct:006.grb2 162.1 Mbytes 2021-07-30T20:40:17.188Z
         GFS Grid 4 2021-07-30 06:00 UTC fct:003.grb2 161.6 Mbytes 2021-07-30T20:40:16.153Z
         GFS Grid 4 2021-07-30 06:00 UTC fct:000.grb2 152.1 Mbytes 2021-07-30T20:40:15.577Z
         GFS Grid 4 2021-07-30 00:00 UTC fct:006.grb2 162.7 Mbytes 2021-07-30T08:40:14.416Z
         GFS Grid 4 2021-07-30 00:00 UTC fct:003.grb2 162.0 Mbytes 2021-07-30T08:40:14.393Z
         GFS Grid 4 2021-07-30 00:00 UTC fct:000.grb2 151.7 Mbytes 2021-07-30T08:40:14.022Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation