常见问题 & 参考
查找有关包裹追踪、运输时间和递送状态的常见问题的答案
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UPS Tracking Number Format: 1Z Codes Decoded
Break down any UPS 1Z tracking number digit by digit. See which service code means Ground vs. Next Day Air, verify the check digit, and spot invalid numbers before contacting support.
FedEx Tracking Number Format: All Lengths
Tell apart FedEx 12-digit Express, 15-digit Ground, 20-digit SmartPost, and 22-digit Freight tracking numbers. Includes real examples and a check digit calculator.
USPS Tracking Number Format: Every Prefix
Identify any USPS tracking number by its prefix. Covers 9400, 9205, 9261, and all 20- to 34-digit formats with real examples so you know which mail class is carrying your package.
Tracking number examples by carrier: UPS, USPS, FedEx, DHL, SingPost, China Post, Cainiao, and OnTrac
Compare common tracking number examples by carrier, including UPS 1Z numbers, USPS 9400 numbers, DHL Express 10 digit waybills, SingPost SG formats, China Post CN formats, and OnTrac prefixes.
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AliExpress Standard Shipping Tracking Format
Your AliExpress LP code changes to a 13-character postal number after leaving China. See exactly when the switch happens and how to track both numbers at once.
Anti-dumping duties: Extra taxes you didn't expect
Understand why some goods face massive extra taxes and how to check if your items are affected.
Cainiao Tracking Number Format and LP Codes
Decode Cainiao LP00 tracking numbers used by AliExpress and Temu. See why the code changes after leaving China and which local carrier picks up your package.
China Post Tracking: R, E, L, C Prefix Guide
Figure out what the R, E, L, or C prefix on your China Post tracking number actually means. Covers ePacket (LX), EMS (EX), and registered mail (RX) with real number breakdowns.
Customs Clearance Process for Import and Export
Learn about the customs clearance process and its importance in trade. Find out how to clear customs and start your import or export journey
Customs disbursement fees: why they exist and how to avoid them
Disbursement or handling fees are what couriers charge for paying your import taxes upfront. Learn how they work and legitimate ways to avoid them.
Why is my package stuck in customs inspection?
Common reasons for customs delays and what actually happens when your parcel is pulled for a random inspection.
DHL Tracking Number Format: 10 vs 11 Digits
Tell apart DHL Express 10-digit waybills from eCommerce 11-digit codes and Parcel DE 12-to-20-digit numbers. Includes real examples and the check digit formula.
DPD Tracking Number: UK, DE, and EU Formats
DPD tracking numbers range from 10 to 14 digits and change format by country. See how to tell UK, German, and French DPD codes apart, plus get your Predict time slot.
EU import taxes in 2026: VAT, duties and the new €3 parcel duty
How EU import charges work in 2026: VAT on every parcel, the end of the €150 duty-free band, and what the new flat duty means for cheap orders.
Expedited shipping options: what each carrier's fast service gets you
Overnight, 2-day and express options from USPS, UPS, FedEx and DHL compared: real delivery windows, guarantees, and when expedited is worth paying for.
FedEx Tracking Number Format: All Lengths
Tell apart FedEx 12-digit Express, 15-digit Ground, 20-digit SmartPost, and 22-digit Freight tracking numbers. Includes real examples and a check digit calculator.