# Indexers > The four Usenet indexers I use in my setup: DrunkenSlug, NZBgeek, altHUB, and NzbPlanet — all managed through Prowlarr. # Indexers Usenet indexers are search engines for Usenet content. They index binary posts across newsgroups and let you search by title. When Sonarr or Radarr looks for a release, it queries your indexers through Prowlarr. I currently run four indexers. All are paid services with API access. ## DrunkenSlug - Site: `drunkenslug.com` - Type: paid, invite-only My highest-performing indexer. Despite having the slowest average response time (~500ms), it accounts for roughly 110 out of 189 total grabs — about 58% of everything downloaded. Registration is closed; invites occasionally appear on [r/usenetinvites](https://www.reddit.com/r/usenetinvites). ## NZBgeek - Site: `nzbgeek.info` - Type: paid membership General-purpose indexer with solid coverage of movies and TV. Second in grab count (~55 grabs), with a response time around 320ms. A reliable fallback when DrunkenSlug doesn't have a release. ## altHUB - Site: `althub.co.za` - Type: paid membership Faster than both DrunkenSlug and NZBgeek (~280ms), but contributes only ~12 grabs total. Coverage overlaps heavily with the top two. ## NzbPlanet - Site: `nzbplanet.net` - Type: paid membership The fastest indexer in my setup (~220ms average response), but also the least useful — only ~6 successful grabs. Most of what it finds is already covered by DrunkenSlug or NZBgeek. ## Which one actually matters DrunkenSlug and NZBgeek together account for ~88% of all grabs. altHUB and NzbPlanet fill in gaps that rarely come up in practice. Running all four isn't necessary. The two main indexers cover almost everything. I keep altHUB and NzbPlanet active for edge cases (obscure releases, regional content, or when a primary indexer is down), but trimming to just DrunkenSlug and NZBgeek would have minimal impact on day-to-day downloads. ## Adding indexers in Prowlarr 1. Open Prowlarr at `http://:9696` 2. Go to **Indexers → Add Indexer** 3. Search by name, select the indexer 4. Enter your API key 5. Click **Test** to verify the connection 6. Click **Save** Prowlarr syncs the indexer to Sonarr and Radarr automatically — no manual steps needed there.