Where you go on rynda depends on the task: watch vessels, find cargo or tonnage, or vet a specific vessel.
Watching vessels
Build My Fleet and set alerts — port arrival, speed change and other events.
Finding cargo or tonnage
Open the marketplace or turn on the "Cargo" layer on the map. Found a fit — "Write to broker".
Vetting a vessel
Find a ship by name or IMO and open its page — particulars, ownership, class, inspections, sanctions matches.
Just exploring the market
Open the Ports Map — live vessels, ports, open tonnage and cargo on one map.
Most of it works without an account; you need one to message a broker and run a fleet.
See also