1. The search engine adds itself to the tracker list in the magnet URI (&tr= query parameters), but with a unique subdomain and using HTTP (i.e. it adds http://asdfkja.skytorrent.in/announce to the tracker list)
2. The client announces itself to the tracker, sending the unique "Host" in the GET request (asdfkja.skytorrent.in in the example).
1. The search engine adds itself to the tracker list in the magnet URI (&tr= query parameters), but with a unique subdomain and using HTTP (i.e. it adds http://asdfkja.skytorrent.in/announce to the tracker list)
2. The client announces itself to the tracker, sending the unique "Host" in the GET request (asdfkja.skytorrent.in in the example).