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tether
Tether is a hardware device that projects safety zones around bicycles to enhance rider visibility and protection
last checked Jul 13, 2026 · HTTP 403
CohortClass of 2026What it is
Tether is a hardware device that projects safety zones around bicycles to enhance rider visibility and protection. It intelligently responds to surrounding road users and identifies safe versus unsafe routes in your city. The device combines real-time awareness with crowdsourced data to improve urban cycling safety.
HTTP liveness
9 probes since Jun 16Jun 16Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — unverifiedCloudflare block
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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 2026weekly
567 products launched in 2026 · 100% still active
567 active0 sunset
Still active
100%
Median lifespan
4.9y