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Sentinel
Sentinel automates the discovery and analysis of keyword opportunities to inform content strategy and competitive positioning
verified Jul 12, 2026 · HTTP 200
CohortClass of 2016What it is
Sentinel automates the discovery and analysis of keyword opportunities to inform content strategy and competitive positioning. It provides actionable SEO intelligence by identifying underutilized search terms and market gaps, helping marketing teams prioritize optimization efforts.
HTTP liveness
9 probes since Jun 16Jun 16Jul 12
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — liveAlive · 200 OK
Moat
Data moat
weak
Identifies underutilized search terms and market gaps.
weak · 0.70 confidence
Text classification · Jul 2026
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Pulse Indexobserved activity
9 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2016weekly
13,657 products launched in 2016 · 100% still active
13,633 active24 sunset
Still active
100%
Median lifespan
4.9y