The link pasted above is the viewer for the map server, which combines different sources.
This is the endpoint for the national map arcgis is:
Recently it was included in a newer integrated map for better searching of places like springs, protected cultural or natural heritage, individual parcels (buildings, agricultural, administrative, roads, beaches. etc.), street names and number and others. There's an option for pulling reports and matching kmz data. There're also paid services as the ownership of the parcels and bigger data dumps are costly.
Most of that data (except the street names and numbers and the ownership is also in the inspire arcgis.