NDBC THREDDS Server Catalog https://dods.ndbc.noaa.gov/thredds/catalog/oceansites/deployment_data/P12N23W/catalog.html

Dataset Size Last Modified
     Folder  P12N23W   --
         OS_P12N23W_200606_M_TVSM_dy.nc 865.1 Kbytes 2013-03-06T13:31:09Z

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