{
 "metric": "dmarc-policy",
 "segment": "gb-micro",
 "anchor": "company",
 "label": "UK micro companies",
 "population": "UK micro 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": 231,
  "qf_pct": 88.74,
  "ci": [
   84.02,
   92.2
  ],
  "dist": {
   "reject": 6.93,
   "quarantine": 4.33,
   "none": 31.6,
   "malformed": 0,
   "absent": 57.14
  },
  "snapshot": "uk-companies-house-per600-seed20260728"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 102,
   "qf_pct": 84.31,
   "ci": [
    76.03,
    90.11
   ],
   "dist": {
    "reject": 3.92,
    "quarantine": 11.76,
    "none": 30.39,
    "malformed": 0,
    "absent": 53.92
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-02",
   "n": 101,
   "qf_pct": 84.16,
   "ci": [
    75.81,
    90.01
   ],
   "dist": {
    "reject": 3.96,
    "quarantine": 11.88,
    "none": 30.69,
    "malformed": 0,
    "absent": 53.47
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-03",
   "n": 102,
   "qf_pct": 84.31,
   "ci": [
    76.03,
    90.11
   ],
   "dist": {
    "reject": 3.92,
    "quarantine": 11.76,
    "none": 30.39,
    "malformed": 0,
    "absent": 53.92
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-05",
   "n": 231,
   "qf_pct": 88.74,
   "ci": [
    84.02,
    92.2
   ],
   "dist": {
    "reject": 6.93,
    "quarantine": 4.33,
    "none": 31.17,
    "malformed": 0,
    "absent": 57.58
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-10",
   "n": 231,
   "qf_pct": 88.74,
   "ci": [
    84.02,
    92.2
   ],
   "dist": {
    "reject": 6.93,
    "quarantine": 4.33,
    "none": 31.17,
    "malformed": 0,
    "absent": 57.58
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-17",
   "n": 231,
   "qf_pct": 88.74,
   "ci": [
    84.02,
    92.2
   ],
   "dist": {
    "reject": 6.93,
    "quarantine": 4.33,
    "none": 31.6,
    "malformed": 0,
    "absent": 57.14
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/dmarc-policy/gb-micro"
}