{
 "metric": "security-headers",
 "segment": "lu",
 "anchor": "domain",
 "label": "Luxembourg (domains)",
 "population": "domains in Luxembourg",
 "states": [
  "strong",
  "partial",
  "missing"
 ],
 "quiet_failure_states": [
  "partial",
  "missing"
 ],
 "measurement": "Tier 3a; check `Strict-Transport-Security`, `Content-Security-Policy`, `X-Frame-Options` on the homepage response. Denominator: `has_web`.",
 "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.",
 "limits": null,
 "data_tier": "http_3a",
 "population_predicate": "has_web",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-13",
  "n": 249,
  "qf_pct": 83.53,
  "ci": [
   78.42,
   87.62
  ],
  "dist": {
   "strong": 16.47,
   "partial": 26.91,
   "missing": 56.63
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 86,
   "qf_pct": 83.72,
   "ci": [
    74.51,
    90.05
   ],
   "dist": {
    "strong": 16.28,
    "partial": 20.93,
    "missing": 62.79
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 87,
   "qf_pct": 83.91,
   "ci": [
    74.78,
    90.17
   ],
   "dist": {
    "strong": 16.09,
    "partial": 20.69,
    "missing": 63.22
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 251,
   "qf_pct": 84.06,
   "ci": [
    79.03,
    88.07
   ],
   "dist": {
    "strong": 15.94,
    "partial": 28.29,
    "missing": 55.78
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 250,
   "qf_pct": 84,
   "ci": [
    78.95,
    88.02
   ],
   "dist": {
    "strong": 16,
    "partial": 27.6,
    "missing": 56.4
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-06",
   "n": 250,
   "qf_pct": 84,
   "ci": [
    78.95,
    88.02
   ],
   "dist": {
    "strong": 16,
    "partial": 27.2,
    "missing": 56.8
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-13",
   "n": 249,
   "qf_pct": 83.53,
   "ci": [
    78.42,
    87.62
   ],
   "dist": {
    "strong": 16.47,
    "partial": 26.91,
    "missing": 56.63
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/security-headers/lu"
}