MarineTraffic

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][4].

The service reports a network of more than 13,000 AIS receivers across the globe and over five years of historical vessel movement data, making it one of the most widely referenced public windows into global shipping activity for maritime professionals, researchers, and logistics teams.^[1][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

The underlying methodology is crowd-sourced plus satellite AIS reception: shore-based receivers contributed across a worldwide network feed position reports that Kpler describes as averaging roughly 25-second message frequency with about five seconds of data latency at the group level. Historical archives spanning more than five years enable voyage reconstruction and post-voyage reporting including performance conditions.^[3]

Products

Product lines include the flagship live ship-tracking map, a ship database, APIs and custom extracts under MarineTraffic Data Services, and MarineTraffic Inbox, an encrypted, GDPR-compliant collaborative email platform designed for shipbrokers, charterers, and vessel operators to manage high-volume chartering correspondence with AI sorting.^[3]

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]

History

MarineTraffic began as an academic and community-driven AIS visualization project in Greece and grew into a commercial service used by millions. It was acquired by Kpler, which now integrates its receiver network and historical archive into the group's broader trade intelligence stack; Kpler's ship-tracking products are described as built on leading maritime intelligence from MarineTraffic.^[3]

The main marinetraffic.com website currently renders its interface client-side and blocks many automated crawlers, so third-party descriptions of the service rely heavily on documentation published by Kpler and archived captures of the site.^[2][3]

Landscape

MarineTraffic competes with VesselFinder, FleetMon, and Lloyd's List Intelligence in ship tracking, and sits within the Kpler group alongside institutional-grade flow analytics — a combination comparable to competitors' bundling of tracking with market data. Within the Supply Chain alternative data category, AIS feeds like MarineTraffic's are foundational inputs for trade-flow estimation.^[1][3]