{
 "metric": "security-headers",
 "segment": "br",
 "anchor": "domain",
 "label": "Brazil (domains)",
 "population": "domains in Brazil",
 "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": 208,
  "qf_pct": 91.83,
  "ci": [
   87.3,
   94.83
  ],
  "dist": {
   "strong": 8.17,
   "partial": 31.25,
   "missing": 60.58
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 73,
   "qf_pct": 79.45,
   "ci": [
    68.83,
    87.13
   ],
   "dist": {
    "strong": 20.55,
    "partial": 20.55,
    "missing": 58.9
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 75,
   "qf_pct": 80,
   "ci": [
    69.59,
    87.49
   ],
   "dist": {
    "strong": 20,
    "partial": 20,
    "missing": 60
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 210,
   "qf_pct": 90.95,
   "ci": [
    86.3,
    94.13
   ],
   "dist": {
    "strong": 9.05,
    "partial": 30.48,
    "missing": 60.48
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 208,
   "qf_pct": 90.87,
   "ci": [
    86.17,
    94.07
   ],
   "dist": {
    "strong": 9.13,
    "partial": 29.81,
    "missing": 61.06
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-06",
   "n": 205,
   "qf_pct": 90.73,
   "ci": [
    85.98,
    93.99
   ],
   "dist": {
    "strong": 9.27,
    "partial": 29.27,
    "missing": 61.46
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-13",
   "n": 208,
   "qf_pct": 91.83,
   "ci": [
    87.3,
    94.83
   ],
   "dist": {
    "strong": 8.17,
    "partial": 31.25,
    "missing": 60.58
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/security-headers/br"
}