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TOP Frameworks and Tools to Build
A curated collection of modern frameworks and development tools designed to streamline Progressive Web App creation
verified Jul 15, 2026 · HTTP 200
CohortClass of 2020What it is
A curated collection of modern frameworks and development tools designed to streamline Progressive Web App creation. Covers the latest technologies that have transformed contemporary web development practices. Ideal for developers seeking current best practices and tooling recommendations.
HTTP liveness
8 probes since Jun 16Jun 16Jul 15
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jul 15, 2026Back onlineAlive · 200 OK
- Jul 9, 2026Went darkDead · 5xx
- Jun 16, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
8 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2020weekly
135 products launched in 2020 · 96% still active
129 active6 sunset
Still active
96%
Median lifespan
4.9y