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Trackers
A tracker is a server that helps torrent clients find each other. When you start downloading, your client announces itself to the tracker, which responds with a list of other peers (IPs and ports) that have pieces of the same torrent.
How Trackers Work
- Your client sends an announce request to the tracker URL (e.g.,
udp://tracker.example.com:1337/announce) - The tracker responds with a list of peers currently in the swarm
- Your client connects directly to those peers — the tracker is not involved in the actual transfer
- Your client re-announces periodically (every 30 minutes by default) to update its peer list
Modern torrent clients also use DHT (Distributed Hash Table) and PEX (Peer Exchange), which allow peer discovery without any central tracker. This is why torrents often still work even when their listed trackers are down.
Public vs Private Trackers
| Public | Private | |
|---|---|---|
| Access | Open to anyone | Invite or application required |
| Ratio | Not enforced | Upload/download ratio enforced |
| Content | General, everything | Often specialized and curated |
| Speed | Variable | Often faster (motivated seeders) |
| Retention | Low (torrents go dead) | High (often mandatory seeding periods) |
| Safety | More fakes/malware risk | Curated, lower risk |
Choosing Between Them
Start with public trackers — they're accessible immediately and cover most popular content. Use Magnetz to search across multiple public sources at once.
Move to private trackers when you want:
- Higher quality releases with specific encoding standards
- Long-term availability of niche content
- Faster speeds on popular content
- A specific content category (e.g., lossless music, classic films)
Pages in This Section
- Public Trackers — curated list of the best public trackers
- Private Trackers — how they work and how to get access