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Also known as: NZB indexer, Usenet indexer
A site that scans newsgroup headers server-side, parses subject lines to work out what each posting is, and publishes the results as searchable entries with downloadable NZB files. Indexers spare users from pulling gigabytes of headers themselves. Most expose both a web search page and an API, meter usage in searches and downloads, and cover only the groups and time range their own database reaches.
Browse all terms in NZB Files & Indexing, or see the full Usenet glossary.