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Firebase Phone Auth
Authenticate users by sending SMS messages to their phones
verified Aug 24, 2026 · HTTP 200
CohortClass of 2017What it is
Authenticate users by sending SMS messages to their phones. [API, Developer Tools, Tech]
HTTP liveness
18 probes since Jun 16Jun 16Aug 24
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — liveAlive · 200 OK
Funding history
1 roundTotal raised
$85.0B
Latest valuation
—
Stage
growth
Growth
Jun 2026
investors undisclosed
$85.0B
Data from SEC EDGAR Form D filings and press coverage. Round labels for SEC filings are inferred from filing sequence and amount.
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Pulse Indexobserved activity
18 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2017weekly
13,497 products launched in 2017 · 100% still active
13,462 active35 sunset
Still active
100%
Median lifespan
4.9y