Tracking know-how
AIS shows the ship. It does not show your container.
Vessel position is useful context and a poor substitute for shipment data. Knowing the difference stops bad promises.
From the team behind Tracktainer
What we learn from tracking containers all day.
We track containers across 170+ shipping lines every day, and a person checks the data by hand when it does not add up. These are the notes from that work: charges nobody warned you about, statuses that mislead, paperwork that does not match the cargo.
Container, bill of lading or booking · 3 free credits
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ZIM, HMM and Yang Ming: three mid sized carriers, three tracking habits
Smaller than the top five, and each with a distinct approach to publishing events.
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Certificates of origin: the document that decides your duty rate
A preferential origin certificate can remove duty entirely. Getting the form or the timing wrong removes the benefit.
Compare & alternatives
17TRACK is for parcels. Containers are a different system entirely.
Parcel aggregators and ocean container tracking share a word and almost nothing else.
Tracking know-how
How often does tracking data actually update?
Real time is a marketing word. Here is what the update rhythm looks like in practice.
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Why your NVOCC shipment does not track like a carrier one
An NVOCC issues its own bill of lading and often has no event system behind it.
Logistics tech
Bulk tracking without an integration: what a CSV upload gets you
Not every team needs an API. A spreadsheet upload covers more cases than vendors like to admit.
Shipping lines
Which carriers publish empty return, and why it matters more than you think
The event that stops the detention clock is also one of the least consistently published.
Trade and customs
Advance filings: ISF, ENS, and the deadlines that carry real penalties
Most importing countries want cargo data before the ship sails. Missing the window is a fine, not a delay.
Tracking know-how
45G1, 22G1, 42R1: reading the size and type code
Four characters on the container door that tell you the dimensions, the shape and what it was built to carry.
Logistics tech
When your ops team and your customer see different answers
Three systems holding three versions of the same shipment is how confident wrong answers get sent.
Tracking know-how
Tracking a reefer: the events that are not on the standard timeline
Temperature cargo has failure modes that a normal milestone list will never show you.
Check a container before you finish reading.
Paste a container number, bill of lading or booking reference. We detect the carrier across 170+ shipping lines. Three tracking credits are free, no card needed.
Looking for the tool itself? Container tracking on tracktainer.com