NDBC THREDDS Server Catalog https://dods.ndbc.noaa.gov/thredds/catalog/data/stdmet/eb31/catalog.html

Dataset Size Last Modified
     Folder  eb31   --
         eb31h1973.nc 19.16 Kbytes 1973-05-22T18:00:00Z

National Data Buoy Center THREDDS Server at National Data Buoy Center see Info
THREDDS Data Server [Version 4.6.14 - 2019-07-23T11:04:31-0600] Documentation