Everything technical users ask before choosing a CTC2 direct-connection line.
CTC2 is a direct-connection sub-service of the CTC brand (also known in the community as 金龙鱼机场), running for several years now. It focuses specifically on carrier-optimized direct proxy lines rather than relay-based routing.
No. ctc2official.com is an independent informational and affiliate website about the CTC2 service. It does not host any login, account, or payment system, and is not affiliated with, endorsed by, or operated by CTC / 金龙鱼机场. It exists to explain CTC2's technology, plans, and setup process.
VLESS combined with the Reality protocol, which camouflages proxy traffic behind a real TLS certificate from an unrelated destination site, making it significantly harder to fingerprint than older proxy protocols.
CTC2 automatically routes China Telecom users via CN2 GIA, China Unicom users via AS9929, and China Mobile users via CMI — each carrier gets the peering path that performs best for its own network.
练气 (Qi Refining), 筑基 (Foundation Building), and 金丹 (Golden Core) are ranks borrowed from Chinese cultivation novels. It's a distinctive branding choice that maps a familiar progression system onto data and bandwidth tiers.
Yes — CTC2 also sells carrier-specific budget lines (for example China Mobile/Unicom-optimized or US-only options) for users who don't need full regional coverage.
CTC2 is structured around half-year and yearly billing by default rather than monthly plans, consistent with its longer-commitment technical user base.
CTC2 lines are tested against Netflix, Disney+, and ChatGPT. Real-world performance still depends on your own ISP and which regional node you choose.
iOS: Shadowrocket, Stash, Loon, Egern, Karing, ClashMi. Android: v2rayNG, Clash Meta. Windows: Clash Verge Rev, Mihomo Party. Cross-platform: sing-box. Surge and Quantumult X are not supported.
CTC2's zero-relay direct-connection architecture removes an entire hop that relay-based competitors add, which generally means lower latency and a higher realistic throughput ceiling — though actual peak speed always depends on your own ISP and local network conditions.