MarineTraffic

Reviewed 2026-09-07

MarineTraffic is a maritime ship-tracking intelligence service that provides real-time vessel positions and related data built on a global network of automatic identification system (AIS) receivers. Now operated by trade intelligence company Kpler, the platform lets users track vessels worldwide and offers data services covering vessel characteristics, ownership records, port calls, bunkering operations, and ship-to-ship transfer events.^[1][3]

A vessel position is not a cargo declaration. MarineTraffic's tracking interface and Kpler's wider cargo, commodity and compliance analytics are related offerings, but access to one does not establish access to every data service or historical archive.^[3]

What It Does

MarineTraffic collects AIS messages, positional broadcasts transmitted by ships, through its terrestrial receiver network and satellite coverage, aggregates them into live maps of global traffic, and enriches positions with vessel profiles including technical specifications, ownership and management details, and photographs. Users monitor fleets, set notifications for vessel activity, and analyze movements by event type.^[3]

Through its Data Services line, customers access APIs covering past vessel movements and real-time events such as port calls, bunkering operations, and ship-to-ship transfers, along with custom data extracts on vessel specifications and capacities.^[3]

Data and Methodology

AIS broadcasts include identity, position, course, speed and navigational status. The International Maritime Organization describes carriage requirements for defined vessel classes, not a requirement that every vessel in the world be visible to a commercial tracking service.^[2] Kpler describes a combination of terrestrial and satellite AIS reception, enriched with vessel identities and derived voyage events.^[3]

Reception, message age and update frequency vary with location, vessel equipment and the licensed service. Treat a last received position as an observation with a timestamp, not proof of a vessel's current position. Check how gaps, duplicate messages, identity changes and suspected spoofing are handled before calculating activity measures.

The reviewed Kpler page contains differently scoped receiver and station counts, and reports group-wide vessel and message totals.^[3] Those marketing figures are not a service-level guarantee for an individual MarineTraffic subscription. Evaluate coverage and latency for the specific geography, period and product instead.

Products

The offering includes vessel tracking, historical replay, fleet monitoring, alerts and vessel particulars. Kpler's maritime-data page also describes API, NMEA, Kafka and custom-extract delivery across its maritime services.^[3] These delivery options should not be assumed to be included in a public map account.

Before licensing a feed, confirm vessel identifiers, event definitions, geographical scope, historical access and redistribution rights. The reviewed product page directs users to demos rather than publishing a single price covering all services.^[3] Historical depth and access entitlements require product-specific confirmation.

Buyers and Use Cases

Users range from maritime professionals, fleet managers monitoring activity and generating post-voyage reports, port agents, and charterers, to supply chain managers, insurers, journalists, and hobbyist ship spotters. In financial contexts, AIS-derived indicators such as port congestion, floating storage, and dark-fleet behavior serve as inputs for commodity trading signals.^[1][3]

Because AIS can be switched off or spoofed, sophisticated users typically combine MarineTraffic feeds with complementary analytics; parent company Kpler markets dedicated detection of AIS gaps and spoofing linked to deceptive shipping practices as part of its compliance products.^[3]

Relationship to Kpler

MarineTraffic is offered within Kpler's maritime product family. Kpler links to the MarineTraffic application from its own site and describes ship tracking alongside cargo, commodity and compliance products.^[3] This relationship explains the overlap in product descriptions; it does not make all group datasets interchangeable.

For financial research, separate observed movements from inferred port calls, cargo estimates and forward-looking arrival predictions. Each layer has different assumptions and revision behavior, so comparisons should retain the relevant source and observation timestamps.

Landscape

Compare AIS services on observed coverage, historical continuity, event definitions and licensing rather than receiver counts alone. Within Supply Chain, vessel movements can help investigate congestion or transport disruptions, but do not directly measure shipment value, ownership of cargo or issuer revenue. The IMO also highlights security concerns around public dissemination of vessel data.^[2]

More datasets from MarineTraffic

MarineTraffic lists 1 datasets on this encyclopedia. The most representative listings:

More about Supply Chain & Shipping

Supply Chain & Shipping is one of the signal families covered by The Alternative Data Encyclopedia, with 19 providers and 142 datasets listed in the register. For how the signal is generated, its caveats and the compliance considerations, and the full provider list, see the category article.