{
 "metric": "security-headers",
 "segment": "pt",
 "anchor": "domain",
 "label": "Portugal (domains)",
 "population": "domains in Portugal",
 "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": 262,
  "qf_pct": 82.82,
  "ci": [
   77.79,
   86.91
  ],
  "dist": {
   "strong": 17.18,
   "partial": 21.37,
   "missing": 61.45
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 103,
   "qf_pct": 92.23,
   "ci": [
    85.42,
    96.01
   ],
   "dist": {
    "strong": 7.77,
    "partial": 19.42,
    "missing": 72.82
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 107,
   "qf_pct": 90.65,
   "ci": [
    83.65,
    94.84
   ],
   "dist": {
    "strong": 9.35,
    "partial": 18.69,
    "missing": 71.96
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 266,
   "qf_pct": 83.46,
   "ci": [
    78.52,
    87.44
   ],
   "dist": {
    "strong": 16.54,
    "partial": 22.56,
    "missing": 60.9
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 265,
   "qf_pct": 83.4,
   "ci": [
    78.45,
    87.39
   ],
   "dist": {
    "strong": 16.6,
    "partial": 22.26,
    "missing": 61.13
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-06",
   "n": 262,
   "qf_pct": 82.44,
   "ci": [
    77.38,
    86.57
   ],
   "dist": {
    "strong": 17.56,
    "partial": 21.37,
    "missing": 61.07
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-13",
   "n": 262,
   "qf_pct": 82.82,
   "ci": [
    77.79,
    86.91
   ],
   "dist": {
    "strong": 17.18,
    "partial": 21.37,
    "missing": 61.45
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/security-headers/pt"
}