Productivity
FFMI Calculator
Last updated 2026-07-22 · benchmark measured 2026-07-22 — deterministic & reproducible
Calculate your Fat-Free Mass Index to measure lean muscle relative to height.
Overall production-readiness score — reserved
Legit.Show benchmarked FFMI Calculator across all seven frames. The single overall score is shown to the verified maker; the frame-by-frame breakdown is public below.
Is FFMI Calculator production-ready?
Legit.Show ran its deterministic 7-Frame production-readiness benchmark on FFMI Calculator (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Performance; its weakest is Privacy. The per-frame breakdown is public on the Legit.Show listing; the single overall production-readiness score is reserved for the verified maker.
The 7 Frames
- Performance — 98/100
- Accessibility — 92/100
- Security — 45/100
- Privacy — 45/100
- Reliability — 80/100
- Standards — 92/100
- Discoverability — 90/100
What we measured
- Security headers present: CSP.
- No HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 1413 ms to first byte.
- Returns a proper 404 for unknown routes.
- 1 of 3 sampled routes reachable.
- Has a reachable privacy policy.
- Sets cookies / loads scripts with no consent prompt.
Who it's for
Natural lifters · Bodybuilders · Fitness enthusiasts · Athletes · Gym-goers