Content & Docs

A Book Apart

Last updated 2026-07-26 · benchmark checked 2026-09-22 · unchanged since 2026-08-18 — deterministic & reproducible

A Book Apart book on using conversation as a model for human-centered design.

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To cite this score: legit.show/s/abookapart-com/2026-09-22. That address never changes; this page moves with every re-measure.

Legit.Show scored A Book Apart 72/100 on 2026-09-22, measured across all 7 frames from its public surface. legit.show/s/abookapart-com/2026-09-22

Is A Book Apart production-ready?

Legit.Show scores A Book Apart 72 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on A Book Apart (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 — 91/100
• Accessibility — 95/100
• Security — 30/100
  How this compares across the catalogue: The Web Security Baseline
• Privacy — 25/100
  How this compares across the catalogue: The Privacy Gap
• Reliability — 100/100
• Standards — 89/100
• Discoverability — 75/100

What we measured

• Security headers present: HSTS.
• No Content-Security-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 259 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

Jeffrey Zeldman · product account @abookapart

Who it's for

Designers · Developers · Content strategists · Product managers · UX professionals

Sources and updates

Description

Taken from abookapart.com's own website on 2026-07-26.

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 2026-09-22.

Put together from public information, without A Book Apart's involvement. If anything here is wrong, tell us and a person will check it.

Visit A Book Apart → · Alternatives to A Book Apart → · How this was measured →