National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-gfs-004-files/202008/20200810/catalog.html

Dataset Size Last Modified
     Folder  20200810   --
         GFS Grid 4 2020-08-10 18:00 UTC fct:006.grb2 100.9 Mbytes 2020-08-17T19:56:41Z
         GFS Grid 4 2020-08-10 18:00 UTC fct:003.grb2 100.5 Mbytes 2020-08-17T19:56:37Z
         GFS Grid 4 2020-08-10 18:00 UTC fct:000.grb2 91.73 Mbytes 2020-08-17T19:56:33Z
         GFS Grid 4 2020-08-10 12:00 UTC fct:006.grb2 101.3 Mbytes 2020-08-17T19:46:20Z
         GFS Grid 4 2020-08-10 12:00 UTC fct:003.grb2 99.87 Mbytes 2020-08-17T19:46:14Z
         GFS Grid 4 2020-08-10 12:00 UTC fct:000.grb2 91.93 Mbytes 2020-08-17T19:46:07Z
         GFS Grid 4 2020-08-10 06:00 UTC fct:006.grb2 101.2 Mbytes 2020-08-10T20:40:25.806Z
         GFS Grid 4 2020-08-10 06:00 UTC fct:003.grb2 100.3 Mbytes 2020-08-10T20:40:31.616Z
         GFS Grid 4 2020-08-10 06:00 UTC fct:000.grb2 91.91 Mbytes 2020-08-10T20:40:30.807Z
         GFS Grid 4 2020-08-10 00:00 UTC fct:006.grb2 101.6 Mbytes 2020-08-10T09:06:59.465Z
         GFS Grid 4 2020-08-10 00:00 UTC fct:003.grb2 100.2 Mbytes 2020-08-10T09:06:59.742Z
         GFS Grid 4 2020-08-10 00:00 UTC fct:000.grb2 91.50 Mbytes 2020-08-10T09:06:58.716Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation