For geonode.state.gov here is the harvest page: https://catalog.data.gov/harvest/geonode-state-csw
On the about page is the source url CSW call:
By default GeoNode only returns at max 10 records in a csw request at a time
To see the names of the records, Add resultType=results to querystring ex:
Add startposition=11
to querystring to paginate, etc. ex: