Developer Tools
JSR
Last updated 2026-08-30 · benchmark measured 2026-08-30 — deterministic & reproducible
A CouchDB-style document database for Deno, backed by Deno KV.
78/100
Top 50% of 11,664 measured
Legit Benchmark — the simple average of 7 measured frames. Frames we could not measure are left out of the average, never counted as zero. Every frame is shown below with its evidence.
Checked 2026-08-30 · scores move as sites change
Is JSR production-ready?
Legit.Show scores JSR 78 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on JSR (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 95/100
- Accessibility — 95/100
- Security — 70/100
- Privacy — 25/100
- Reliability — 100/100
- Standards — 92/100
- Discoverability — 70/100
What we measured
- Security headers present: CSP, X-Frame-Options, X-Content-Type-Options.
- No HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 52 ms to first byte.
- Returns a proper 404 for unknown routes.
- 3 of 3 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
Who built it
product account @jsr_io
Who it's for
Deno developers · Full-stack applications · Document database users
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