# commercial

- - Jun 26, 2019
  - page

  ## GOPROXY Free Version VS Commercial Version

  Currently, GOPROXY and SDK are available in both free and commercial versions. Function Free |Commercial TCP forwarding √ √ UDP forwarding √ √ HTTP(S)Agent √ √ Socks5 Agent √ √ Socks5 proxy UDP support √ √ SPS Integrated Agent √ √ SPS superior certification √ √ Intranet penetration √ √ DNS proxy, anti-pollution, independent DNS service √ √ HTTP(S) proxy authentication, authentication API, load balancing × √ SOCKS5 proxy authentication,