{
 "metric": "mx-dane",
 "segment": "no-large",
 "anchor": "company",
 "label": "Norway large companies",
 "population": "Norway large companies",
 "states": [
  "present",
  "absent"
 ],
 "quiet_failure_states": [
  "absent"
 ],
 "measurement": "Tier 0 (DNS-only, so it works even where port 25 is blocked). TLSA lookup at `_25._tcp.<mx>`. Denominator: `has_mx`.",
 "why_it_matters": "DANE is what turns opportunistic TLS into authenticated TLS — it tells a sender which certificate to expect, closing the downgrade gap that `mx-tls-cert` exposes.",
 "limits": "Near-universally absent outside a few countries; useful as an adoption frontier rather than an actionable defect for a small company.",
 "data_tier": "smtp",
 "population_predicate": "has_mx",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-14",
  "n": 169,
  "qf_pct": 90.53,
  "ci": [
   85.17,
   94.09
  ],
  "dist": {
   "present": 9.47,
   "absent": 90.53
  },
  "snapshot": "brreg-norway-per600-seed20260730"
 },
 "series": [
  {
   "day": "2026-08-04",
   "n": 168,
   "qf_pct": 90.48,
   "ci": [
    85.09,
    94.05
   ],
   "dist": {
    "present": 9.52,
    "absent": 90.48
   },
   "snapshot": "brreg-norway-per600-seed20260730"
  },
  {
   "day": "2026-08-05",
   "n": 169,
   "qf_pct": 90.53,
   "ci": [
    85.17,
    94.09
   ],
   "dist": {
    "present": 9.47,
    "absent": 90.53
   },
   "snapshot": "brreg-norway-per600-seed20260730"
  },
  {
   "day": "2026-08-07",
   "n": 168,
   "qf_pct": 90.48,
   "ci": [
    85.09,
    94.05
   ],
   "dist": {
    "present": 9.52,
    "absent": 90.48
   },
   "snapshot": "brreg-norway-per600-seed20260730"
  },
  {
   "day": "2026-08-14",
   "n": 169,
   "qf_pct": 90.53,
   "ci": [
    85.17,
    94.09
   ],
   "dist": {
    "present": 9.47,
    "absent": 90.53
   },
   "snapshot": "brreg-norway-per600-seed20260730"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/mx-dane/no-large"
}