Vessel Tracker

Vessel Tracker is an AIS-based maritime vessel tracking platform providing real-time positions, historical track data, port call records, and vessel identification information for ships worldwide. It serves as another reference platform in the maritime vessel tracking ecosystem.

For OSINT investigators, maintaining access to multiple vessel tracking platforms (MarineTraffic, VesselFinder, Vessel Tracker) is investigative best practice — AIS receivers are operated by different organizations with different geographic coverage, and cross-referencing between platforms can resolve tracking gaps or discrepancies.

Historical position playback allows investigators to replay a vessel's historical movements day by day, identifying port calls, transit routes, anchorage periods, and any periods of non-reporting. The temporal precision of AIS data enables investigators to construct detailed movement timelines for vessels of interest.

Dark ship detection — identifying periods when a vessel was not reporting AIS position — is facilitated by comparing the continuous expected track with gaps in reported positions. Vessels intentionally disabling AIS (to conduct rendezvous or enter sanctioned ports without tracking) create recognizable gaps in their historical position data.

Port state control inspection records and casualties for specific vessels may be linked from vessel tracking databases, providing safety and compliance history alongside positioning data.

Route analysis connecting specific ports of call builds the commercial pattern for a vessel — regular routes reveal the trade lanes and commercial relationships of the vessel's operator.

Cross-referencing vessel positions with satellite imagery of specific ports can confirm vessel presence at locations and dates where port call records show the vessel anchored — a multi-source corroboration technique for high-confidence attribution.

Document vessel IMO numbers, tracks reviewed, date ranges covered, and any AIS gaps or anomalies identified with full timestamps for maritime investigation records.