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Serendipity Tab
A beautiful browser extension of the news from The Atlantic — Serendipity Tab offers a new story from The Atlantic, hand-picked by our newsroom, every time you open a new tab
verified Jul 14, 2026 · HTTP 200
CohortClass of 2017What it is
A beautiful browser extension of the news from The Atlantic — Serendipity Tab offers a new story from The Atlantic, hand-picked by our newsroom, every time you open a new tab. No timers, to-do lists, RSS feeds, mail notifications, Julianne fries — just a good story to read. [Mac, Chrome Extensions, News]
HTTP liveness
23 probes since Jun 11Jun 11Jul 14
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 11, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
502/4 signal families
Liveness40%1.00
Press30%no data
GitHub20%no data
Tranco10%0.98
Weighted observed activity · updated Jul 13
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