{
 "metric": "dnssec",
 "segment": "gb-dormant",
 "anchor": "company",
 "label": "UK dormant companies",
 "population": "UK dormant companies",
 "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": 146,
  "qf_pct": 95.21,
  "ci": [
   90.43,
   97.66
  ],
  "dist": {
   "signed": 4.79,
   "broken_chain": 3.42,
   "unsigned": 91.78
  },
  "snapshot": "uk-companies-house-per600-seed20260728"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 83,
   "qf_pct": 98.8,
   "ci": [
    93.49,
    99.79
   ],
   "dist": {
    "signed": 1.2,
    "broken_chain": 1.2,
    "unsigned": 97.59
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-03",
   "n": 83,
   "qf_pct": 98.8,
   "ci": [
    93.49,
    99.79
   ],
   "dist": {
    "signed": 1.2,
    "broken_chain": 1.2,
    "unsigned": 97.59
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-04",
   "n": 195,
   "qf_pct": 92.82,
   "ci": [
    88.31,
    95.68
   ],
   "dist": {
    "signed": 7.18,
    "broken_chain": 2.56,
    "unsigned": 90.26
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-05",
   "n": 195,
   "qf_pct": 92.82,
   "ci": [
    88.31,
    95.68
   ],
   "dist": {
    "signed": 7.18,
    "broken_chain": 2.05,
    "unsigned": 90.77
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-11",
   "n": 146,
   "qf_pct": 95.21,
   "ci": [
    90.43,
    97.66
   ],
   "dist": {
    "signed": 4.79,
    "broken_chain": 3.42,
    "unsigned": 91.78
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/dnssec/gb-dormant"
}