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403 Forbidden

Q: Is 403 Forbidden secure?

Legit.Show measured 403 Forbidden's Security frame at 25/100. No Content-Security-Policy and no HSTS. Served over HTTPS with a valid certificate.

Q: How does Legit.Show measure 403 Forbidden?

Legit.Show scores seven frames — Performance, Accessibility, Security, Privacy, Reliability, Standards and Discoverability — deterministically from the public surface (URL, HTTP headers, real Lighthouse), with no LLM in the scoring path. See legit.show/methodology.

A-C Coupling – Deterministic Data Decomposition in O(n) with No Search

17/100

7-Frame production-readiness — according to Legit.Show

Is 403 Forbidden production-ready?

Legit.Show measured 403 Forbidden at 17 out of 100 on its 7-Frame production-readiness benchmark (public-surface assessment). Its strongest frame is Reliability (47); its weakest is Standards (0). Every frame is measured deterministically from the public surface — exactly what was observed is shown below.

The 7 Frames

Security — 25/100
Privacy — 0/100
Reliability — 47/100
Standards — 0/100
Discoverability — 15/100

What we measured

No Content-Security-Policy and no HSTS.
Served over HTTPS with a valid certificate.
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.

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