{
 "metric": "ns-resilience",
 "segment": "gb-dormant",
 "anchor": "company",
 "label": "UK dormant companies",
 "population": "UK dormant companies",
 "states": [
  "multi_provider",
  "single_provider"
 ],
 "quiet_failure_states": [
  "single_provider"
 ],
 "measurement": "Tier 0. NS lookup, map each host to a provider, count distinct providers. Denominator: `any`.",
 "why_it_matters": "Single-provider DNS is a single point of total failure — when that provider has an outage the domain disappears entirely (web, mail, everything). Redundancy here looks present (\"we have four nameservers\") while all four share one fate.",
 "limits": "Low severity; single-provider is a reasonable choice for a small company, so this is context on concentration risk rather than a defect.",
 "data_tier": "dns",
 "population_predicate": "any",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-11",
  "n": 195,
  "qf_pct": 99.49,
  "ci": [
   97.15,
   99.91
  ],
  "dist": {
   "multi_provider": 0.51,
   "single_provider": 99.49
  },
  "snapshot": "uk-companies-house-per600-seed20260728"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 83,
   "qf_pct": 98.8,
   "ci": [
    93.49,
    99.79
   ],
   "dist": {
    "multi_provider": 1.2,
    "single_provider": 98.8
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-05",
   "n": 195,
   "qf_pct": 99.49,
   "ci": [
    97.15,
    99.91
   ],
   "dist": {
    "multi_provider": 0.51,
    "single_provider": 99.49
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-11",
   "n": 195,
   "qf_pct": 99.49,
   "ci": [
    97.15,
    99.91
   ],
   "dist": {
    "multi_provider": 0.51,
    "single_provider": 99.49
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/ns-resilience/gb-dormant"
}