Know before you sail

Real-time GPS interference alerts for the Arabian Gulf, Strait of Hormuz, and Red Sea.

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Monitoring the world's most jammed shipping corridor from Sharjah, UAE.

⚠ HIGH RISK — Strait of Hormuz — GPS jamming active⚠ MEDIUM RISK — Red Sea — Spoofing reports✓ LOW RISK — Arabian Gulf South — Normal⚠ HIGH RISK — Bab el-Mandeb — Active advisory⚠ HIGH RISK — Strait of Hormuz — GPS jamming active⚠ MEDIUM RISK — Red Sea — Spoofing reports✓ LOW RISK — Arabian Gulf South — Normal⚠ HIGH RISK — Bab el-Mandeb — Active advisory

How it works

Zignav is signal and navigation intelligence — not a ship tracker. The map above is a free awareness layer; alerts, risk scores, and reports are the product.

visibility

We monitor

AIS anomalies, UKMTO advisories, and interference patterns across MENA — continuously fused for corridor risk.

radar

We detect

Position jumps, spoofing clusters, GPS signal loss, and impossible speeds — scored against your routes and fleets.

notifications_active

We alert you

Email and WhatsApp alerts before your vessel enters a danger zone — with recommended actions, not just dots on a map.

Pre-voyage route intelligence

Not just a risk label — jamming windows, corridor statistics, and equipment checklists for your specific departure.

High riskDubai → Muscat

Jamming window (24h UTC)

Corridor statistics · Checklist · Active advisories

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Full breakdown is included with every plan — try Route Intelligence

Ships affected daily at peak

Vessels affected Q2 2025

Year on year increase

Most jammed corridor globally

Pricing

Choose the tier that matches your fleet. Upgrade anytime.

Starter

$99/mo

check1 fleet, up to 5 vessels
checkEmail alerts
checkRoute Intelligence pre-voyage reports
checkLive interference map

Get started

Pro

$299/mo

checkUp to 25 vessels
checkEmail + WhatsApp alerts
checkAPI access
check90-day historical data
checkPre-voyage route reports & jamming windows

Get started

Broker

$999/mo

checkUnlimited vessel watchlist
checkWhite-label PDF reports
checkWeekly intelligence brief
checkPriority support
checkCustom alert rules