Nodes are the independent computers that keep the Bitcoin ledger and check its rules; together they form the network itself. The plural form gives the name a sense of scale and community, suggesting many participants, many devices or a service that manages them in bulk. The English term is standard among German Bitcoin users. On .de, the name speaks to operators and buyers in Germany, with domestic invoicing, German documentation and data centre options inside the country.
Part of the mining category and the Bitcoin Mining DACH collection, the name fits infrastructure businesses that work with quantity. Typical projects include a hosting company running node fleets for trading platforms and payment firms, a hardware retailer with a range of node devices, a statistics site mapping nodes in Germany, or a cooperative that operates nodes on behalf of its members.