{
 "metric": "tls-rpt",
 "segment": "gb-companies",
 "anchor": "company",
 "label": "UK companies",
 "population": "UK companies",
 "states": [
  "present",
  "absent"
 ],
 "quiet_failure_states": [
  "absent"
 ],
 "measurement": "Tier 0. TXT at `_smtp._tls.<domain>` for `v=TLSRPTv1`. Denominator: `has_mx`.",
 "why_it_matters": "Without TLS-RPT, a domain has no way to learn that mail to it is being delivered in the clear or that its MTA-STS policy is failing. It is the feedback loop that makes the other two enforceable rather than aspirational.",
 "limits": "Low severity and near-universally absent, so it is reported as context on adoption maturity rather than as an urgent defect.",
 "data_tier": "dns",
 "population_predicate": "has_mx",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-10",
  "n": 2577,
  "qf_pct": 99.22,
  "ci": [
   98.8,
   99.5
  ],
  "dist": {
   "present": 0.78,
   "absent": 99.22
  },
  "snapshot": "uk-companies-house-per600-seed20260728"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 1293,
   "qf_pct": 98.53,
   "ci": [
    97.72,
    99.06
   ],
   "dist": {
    "present": 1.47,
    "absent": 98.53
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-03",
   "n": 1294,
   "qf_pct": 98.53,
   "ci": [
    97.72,
    99.06
   ],
   "dist": {
    "present": 1.47,
    "absent": 98.53
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-04",
   "n": 2597,
   "qf_pct": 99.19,
   "ci": [
    98.77,
    99.47
   ],
   "dist": {
    "present": 0.81,
    "absent": 99.19
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-05",
   "n": 2597,
   "qf_pct": 99.19,
   "ci": [
    98.77,
    99.47
   ],
   "dist": {
    "present": 0.81,
    "absent": 99.19
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-10",
   "n": 2577,
   "qf_pct": 99.22,
   "ci": [
    98.8,
    99.5
   ],
   "dist": {
    "present": 0.78,
    "absent": 99.22
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/tls-rpt/gb-companies"
}