Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Recreational

Certitude

MMSI 367688180 · Call sign WDI3424

Not yet on Master's Mate

Type

Recreational

Flag

USA

Length

13.9 m

Beam

4 m

Draft

1.2 m

Call sign

WDI3424

Official No.

904211

AIS reports

Certitude, an American recreational vessel, measures 13.9 metres on deck. She has a beam of 4 m and a draft of 1.2 m. On AIS she shows as MMSI 367688180, call sign WDI3424. Certitude is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

Free forever · No credit card · for recreational captains

Keep Certitude looked after — even when you’re not aboard.

Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.

Look after her — claim free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Certitude roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

Free with your claim · for recreational captains

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Certitude on the map. It hands you the full bridge:

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim Certitude and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About Certitude

What kind of vessel is Certitude?

Certitude is a Recreational flagged to United States of America.

What is Certitude's MMSI?

Certitude's MMSI is 367688180. Call sign WDI3424.

How big is Certitude?

Certitude is about 13.9 m long, 4 m on the beam, drawing 1.2 m.

Is Certitude on the Master's Mate Safety Initiative Network?

Not yet. If Certitude is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).