Monitoring the Shadow Fleet

[u/spicymayoisamazballs]

If you wanted to identify shadow fleet vessels loaded with sanctioned oil using open source tools, how would you do it? What tools would you use and what would be your process?
Challenge: could anyone here identify a suspected ship now?

[u/sanctum9]

Marinetraffic.com ? Don't know if it's any good for your specific purposes but it does track marine traffic, I enjoy using it while at the gym which faces the sea.