{
 "metric": "cert-trust",
 "segment": "br",
 "anchor": "domain",
 "label": "Brazil (domains)",
 "population": "domains in Brazil",
 "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": 209,
  "qf_pct": 7.66,
  "ci": [
   4.77,
   12.07
  ],
  "dist": {
   "ok": 92.34,
   "hostname_mismatch": 7.18,
   "self_signed": 0.48
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 76,
   "qf_pct": 2.63,
   "ci": [
    0.72,
    9.1
   ],
   "dist": {
    "ok": 97.37,
    "hostname_mismatch": 2.63,
    "self_signed": 0
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 78,
   "qf_pct": 2.56,
   "ci": [
    0.71,
    8.88
   ],
   "dist": {
    "ok": 97.44,
    "hostname_mismatch": 2.56,
    "self_signed": 0
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 211,
   "qf_pct": 7.58,
   "ci": [
    4.72,
    11.96
   ],
   "dist": {
    "ok": 92.42,
    "hostname_mismatch": 7.11,
    "self_signed": 0.47
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 210,
   "qf_pct": 7.62,
   "ci": [
    4.74,
    12.02
   ],
   "dist": {
    "ok": 92.38,
    "hostname_mismatch": 7.14,
    "self_signed": 0.48
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-12",
   "n": 209,
   "qf_pct": 7.66,
   "ci": [
    4.77,
    12.07
   ],
   "dist": {
    "ok": 92.34,
    "hostname_mismatch": 7.18,
    "self_signed": 0.48
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/cert-trust/br"
}