NDBC THREDDS Server Catalog https://dods.ndbc.noaa.gov/thredds/catalog/data/stdmet/mlto3/catalog.html

Dataset Size Last Modified
     Folder  mlto3   --
         mlto3.ncml 302.0 bytes 2017-11-15T16:15:19.863Z
         mlto3h2004.nc 72.09 Kbytes 2004-12-31T23:00:00Z
         mlto3h2005.nc 874.1 Kbytes 2005-12-28T23:30:00Z
         mlto3h2006.nc 338.5 Kbytes 2006-10-12T21:00:00Z

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