{
 "metric": "cert-trust",
 "segment": "it",
 "anchor": "domain",
 "label": "Italy (domains)",
 "population": "domains in Italy",
 "states": [
  "ok",
  "hostname_mismatch",
  "self_signed"
 ],
 "quiet_failure_states": [
  "hostname_mismatch",
  "self_signed"
 ],
 "measurement": "Tier 2; compare issuer/subject and check the SAN list covers the host. Denominator: `has_web`.",
 "why_it_matters": "HTTPS is present, the port is open, TLS negotiates — and every visitor gets a browser warning, or would if they checked. Encryption without authentication.",
 "limits": null,
 "data_tier": "tls",
 "population_predicate": "has_web",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-12",
  "n": 254,
  "qf_pct": 9.45,
  "ci": [
   6.43,
   13.67
  ],
  "dist": {
   "ok": 90.55,
   "hostname_mismatch": 9.06,
   "self_signed": 0.39
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 80,
   "qf_pct": 8.75,
   "ci": [
    4.3,
    16.98
   ],
   "dist": {
    "ok": 91.25,
    "hostname_mismatch": 8.75,
    "self_signed": 0
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 88,
   "qf_pct": 7.95,
   "ci": [
    3.91,
    15.52
   ],
   "dist": {
    "ok": 92.05,
    "hostname_mismatch": 7.95,
    "self_signed": 0
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 253,
   "qf_pct": 9.09,
   "ci": [
    6.13,
    13.27
   ],
   "dist": {
    "ok": 90.91,
    "hostname_mismatch": 8.7,
    "self_signed": 0.4
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 254,
   "qf_pct": 9.06,
   "ci": [
    6.11,
    13.22
   ],
   "dist": {
    "ok": 90.94,
    "hostname_mismatch": 8.66,
    "self_signed": 0.39
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-12",
   "n": 254,
   "qf_pct": 9.45,
   "ci": [
    6.43,
    13.67
   ],
   "dist": {
    "ok": 90.55,
    "hostname_mismatch": 9.06,
    "self_signed": 0.39
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/cert-trust/it"
}