{
 "metric": "dmarc-policy",
 "segment": "gb-small",
 "anchor": "company",
 "label": "UK small companies",
 "population": "UK small companies",
 "states": [
  "reject",
  "quarantine",
  "none",
  "malformed",
  "absent"
 ],
 "quiet_failure_states": [
  "none",
  "malformed",
  "absent"
 ],
 "measurement": "Tier 0. TXT lookup at `_dmarc.<domain>`; parse the `p=` tag. Denominator: `has_mx`.",
 "why_it_matters": "The flagship quiet failure. `p=none` is *monitor mode* — it publishes a record, generates reports, and instructs receivers to deliver forged mail anyway. It looks like DMARC in every compliance checklist and questionnaire while providing no protection. `malformed` is the same failure by accident.",
 "limits": "A domain may be mid-rollout in `none` deliberately; we measure the state, not intent.",
 "data_tier": "dns",
 "population_predicate": "has_mx",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-17",
  "n": 954,
  "qf_pct": 81.13,
  "ci": [
   78.53,
   83.49
  ],
  "dist": {
   "reject": 11.53,
   "quarantine": 7.34,
   "none": 26.42,
   "malformed": 0,
   "absent": 54.72
  },
  "snapshot": "uk-companies-house-per600-seed20260728"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 466,
   "qf_pct": 79.4,
   "ci": [
    75.49,
    82.82
   ],
   "dist": {
    "reject": 11.37,
    "quarantine": 9.23,
    "none": 26.39,
    "malformed": 0,
    "absent": 53
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-02",
   "n": 466,
   "qf_pct": 79.61,
   "ci": [
    75.72,
    83.02
   ],
   "dist": {
    "reject": 11.16,
    "quarantine": 9.23,
    "none": 26.61,
    "malformed": 0,
    "absent": 53
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-03",
   "n": 467,
   "qf_pct": 79.87,
   "ci": [
    76,
    83.26
   ],
   "dist": {
    "reject": 10.92,
    "quarantine": 9.21,
    "none": 26.77,
    "malformed": 0,
    "absent": 53.1
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-05",
   "n": 954,
   "qf_pct": 81.13,
   "ci": [
    78.53,
    83.49
   ],
   "dist": {
    "quarantine": 7.23,
    "none": 26.52,
    "malformed": 0,
    "absent": 54.61,
    "reject": 11.64
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-10",
   "n": 954,
   "qf_pct": 81.13,
   "ci": [
    78.53,
    83.49
   ],
   "dist": {
    "reject": 11.64,
    "quarantine": 7.23,
    "none": 26.52,
    "malformed": 0,
    "absent": 54.61
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-17",
   "n": 954,
   "qf_pct": 81.13,
   "ci": [
    78.53,
    83.49
   ],
   "dist": {
    "reject": 11.53,
    "quarantine": 7.34,
    "none": 26.42,
    "malformed": 0,
    "absent": 54.72
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/dmarc-policy/gb-small"
}