{
 "metric": "security-headers",
 "segment": "be",
 "anchor": "domain",
 "label": "Belgium (domains)",
 "population": "domains in Belgium",
 "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": 279,
  "qf_pct": 85.66,
  "ci": [
   81.07,
   89.29
  ],
  "dist": {
   "strong": 14.34,
   "partial": 29.75,
   "missing": 55.91
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 96,
   "qf_pct": 78.12,
   "ci": [
    68.86,
    85.22
   ],
   "dist": {
    "strong": 21.88,
    "partial": 15.62,
    "missing": 62.5
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 100,
   "qf_pct": 79,
   "ci": [
    70.02,
    85.83
   ],
   "dist": {
    "strong": 21,
    "partial": 16,
    "missing": 63
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 282,
   "qf_pct": 85.11,
   "ci": [
    80.48,
    88.79
   ],
   "dist": {
    "strong": 14.89,
    "partial": 29.08,
    "missing": 56.03
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 280,
   "qf_pct": 85,
   "ci": [
    80.35,
    88.71
   ],
   "dist": {
    "strong": 15,
    "partial": 28.93,
    "missing": 56.07
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-06",
   "n": 282,
   "qf_pct": 84.75,
   "ci": [
    80.09,
    88.48
   ],
   "dist": {
    "strong": 15.25,
    "partial": 28.72,
    "missing": 56.03
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-13",
   "n": 279,
   "qf_pct": 85.66,
   "ci": [
    81.07,
    89.29
   ],
   "dist": {
    "strong": 14.34,
    "partial": 29.75,
    "missing": 55.91
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/security-headers/be"
}