Web
nOS4
Last updated 2026-09-01 · benchmark measured 2026-10-23 — deterministic & reproducible
nOS4 brings the phone you remember back to your browser.
Are you the maker of nOS4? Claim this listing. It is free, takes a meta tag, a DNS record or GitHub admin rights, and never changes the score.
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To cite this score: legit.show/s/nos4-fun/2026-10-23. That address never changes; this page moves with every re-measure.
Legit.Show scored nOS4 76/100 on 2026-10-23, measured across all 7 frames from its public surface. legit.show/s/nos4-fun/2026-10-23
Is nOS4 production-ready?
Legit.Show scores nOS4 76 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on nOS4 (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Accessibility; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 71/100
- Accessibility — 100/100
- Security — 45/100How this compares across the catalogue: The Web Security Baseline
- Privacy — 25/100How this compares across the catalogue: The Privacy Gap
- Reliability — 92/100
- Standards — 100/100
- Discoverability — 100/100
What we measured
- Security headers present: X-Content-Type-Options, Referrer-Policy.
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 108 ms to first byte.
- Returns a proper 404 for unknown routes.
- 0 of 0 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
Who built it
ege türker
Sources and updates
- Description
- Taken from nos4.fun's own website on 2026-09-01.
- Benchmark
- Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-10-23.
Put together from public information, without nOS4's involvement. If anything here is wrong, tell us and a person will check it.