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GPTPLUS
A Chrome extension that brings advanced AI assistance directly to your browser sidebar
since Jun 16, 2026 · HTTP 521
CohortClass of 2026What it is
A Chrome extension that brings advanced AI assistance directly to your browser sidebar. GPTPLUS leverages GPT-4 and GPT-3.5 to provide real-time support for writing, code analysis, translation, and technical Q&A across any website.
HTTP liveness
10 probes since Jun 16Jun 16Jul 15
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — downDead · 5xx
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Pulse Indexobserved activity
02/4 signal families
Liveness40%0.00
Press30%no data
GitHub20%no data
Tranco10%0.03
Weighted observed activity · updated Jul 15
Cohort survival · Class of 2026weekly
550 products launched in 2026 · 100% still active
550 active0 sunset
Still active
100%
Median lifespan
4.9y