{
 "metric": "dnssec",
 "segment": "pl",
 "anchor": "domain",
 "label": "Poland (domains)",
 "population": "domains in Poland",
 "states": [
  "signed",
  "broken_chain",
  "unsigned"
 ],
 "quiet_failure_states": [
  "broken_chain",
  "unsigned"
 ],
 "measurement": "**local probe** (deliberately, ADR-0009): DNSKEY at the child, then DS at the **parent**. Denominator: `any`.",
 "why_it_matters": "`broken_chain` is the quiet failure and the reason this metric exists — DNSKEY published but no DS at the parent means the zone is signed and *unverifiable*. The operator has done the work, the dashboard says DNSSEC is on, and no resolver on earth validates it. Unsigned is merely the default.",
 "limits": "Must be measured locally. The DomainAPI health endpoint exposes no DNSSEC state and resolves DS at the child, which cannot distinguish `broken_chain` from `signed`.",
 "data_tier": "dns",
 "population_predicate": "any",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-11",
  "n": 171,
  "qf_pct": 91.81,
  "ci": [
   86.73,
   95.06
  ],
  "dist": {
   "signed": 8.19,
   "broken_chain": 4.09,
   "unsigned": 87.72
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 94,
   "qf_pct": 92.55,
   "ci": [
    85.42,
    96.35
   ],
   "dist": {
    "signed": 7.45,
    "broken_chain": 5.32,
    "unsigned": 87.23
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 94,
   "qf_pct": 92.55,
   "ci": [
    85.42,
    96.35
   ],
   "dist": {
    "signed": 7.45,
    "broken_chain": 5.32,
    "unsigned": 87.23
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 230,
   "qf_pct": 86.52,
   "ci": [
    81.5,
    90.34
   ],
   "dist": {
    "signed": 13.48,
    "broken_chain": 0.43,
    "unsigned": 86.09
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 230,
   "qf_pct": 86.52,
   "ci": [
    81.5,
    90.34
   ],
   "dist": {
    "signed": 13.48,
    "broken_chain": 0.43,
    "unsigned": 86.09
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-11",
   "n": 171,
   "qf_pct": 91.81,
   "ci": [
    86.73,
    95.06
   ],
   "dist": {
    "signed": 8.19,
    "broken_chain": 4.09,
    "unsigned": 87.72
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/dnssec/pl"
}