China Post

China Post operates one of the largest postal networks on the planet, serving over 1.4 billion people across a geography that ranges from dense coastal megacities to remote Tibetan plateau villages. As the state postal operator of the People's Republic of China, it holds a statutory mandate to provide universal service, but it competes vigorously with private express couriers like SF Express, JD Logistics, and the Alibaba-backed Cainiao network for the lucrative eCommerce parcel market. China Post's EMS international express service is particularly significant for cross-border sellers, routing packages from Chinese manufacturers to postal networks worldwide.

For international shipments, China Post generates tracking numbers that begin with specific prefixes — typically R, E, or C followed by digits and the letters CN — that receiving postal networks worldwide recognise and can trace through their own systems. The china-post.com.cn tracking portal handles domestic enquiries, while the EMS tracking interface handles cross-border shipments. API integrations connect Chinese sellers on platforms like AliExpress and DHgate to China Post's label and tracking infrastructure, automating the handoff of shipment data to buyers in over 180 destination countries.

Tracking failures are the most common pain point for international China Post shipments. Packages often show a last scan from a Chinese sorting facility and then go silent for days or weeks as they clear customs at the destination country — a delay that is partly a function of the physical journey and partly a failure to exchange scan data between postal networks. The EMS website can be slow or unavailable from outside mainland China due to network conditions and the structure of Chinese internet infrastructure. During major Chinese holidays, the combination of surging parcel volumes and reduced staffing at sorting facilities creates significant backlogs.

Outage.gg tracks China Post EMS service disruptions using community reports from international buyers, cross-border sellers, and logistics professionals. If tracking is not updating, the EMS portal is unreachable, or shipments are experiencing unusual delays, the live status page shows whether others are experiencing the same issues.