Security headers · Norway micro companies

What share of Norway micro companies have no HSTS or Content-Security-Policy header?

84.91%

84.91% of Norway micro companies (95% CI 79.74–88.95%), measured across 232 companies on 2026-08-13.

strong: 15.09%partial: 32.33%missing: 52.59%
strong · 15.09%partial · 32.33%missing · 52.59%
Trend

Measured every Thursday since 2026-08-01 — 4 observations to date. Last measured 2026-08-13.

How this is measured

Tier 3a; check Strict-Transport-Security, Content-Security-Policy, X-Frame-Options on the homepage response. Denominator: has_web.

Passive measurement: a single DNS lookup, TLS handshake, or homepage GET per domain. Aggregate-only; no individual company is named. 95% Wilson confidence intervals. Population: national company registries (Companies House, Brreg, SIRENE), sampled by size band and resolved to email-active domains. Parked domains excluded. Snapshot: brreg-norway-per600-seed20260730.

Licensed CC BY 4.0 — reuse with attribution to Quiet Failures. Download: JSON · CSV.

Why it matters

HSTS is what stops the first, downgradeable request; CSP is what limits the damage of injected script. Both are one-line changes, and both are commonly switched off silently by a framework upgrade or a proxy change.

The same check, other segments

Show the remaining 65 segments

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