{
 "metric": "https-redirect",
 "segment": "jp",
 "anchor": "domain",
 "label": "Japan (domains)",
 "population": "domains in Japan",
 "states": [
  "enforced",
  "missing"
 ],
 "quiet_failure_states": [
  "missing"
 ],
 "measurement": "Tier 3a, one GET; follow redirects and read the final scheme. Denominator: `has_web`.",
 "why_it_matters": "A valid certificate is worthless if the site still answers on port 80 — visitors and links arrive over HTTP and are never upgraded. HTTPS is \"installed\" but optional.",
 "limits": null,
 "data_tier": "http_3a",
 "population_predicate": "has_web",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-13",
  "n": 264,
  "qf_pct": 31.44,
  "ci": [
   26.14,
   37.27
  ],
  "dist": {
   "enforced": 68.56,
   "missing": 31.44
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 73,
   "qf_pct": 31.51,
   "ci": [
    22,
    42.86
   ],
   "dist": {
    "enforced": 68.49,
    "missing": 31.51
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-03",
   "n": 92,
   "qf_pct": 28.26,
   "ci": [
    20.08,
    38.19
   ],
   "dist": {
    "enforced": 71.74,
    "missing": 28.26
   },
   "snapshot": "common-crawl-domain-stratified-c150-g2500-seed20260729"
  },
  {
   "day": "2026-08-04",
   "n": 261,
   "qf_pct": 31.03,
   "ci": [
    25.73,
    36.89
   ],
   "dist": {
    "enforced": 68.97,
    "missing": 31.03
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-05",
   "n": 265,
   "qf_pct": 31.32,
   "ci": [
    26.04,
    37.14
   ],
   "dist": {
    "enforced": 68.68,
    "missing": 31.32
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-06",
   "n": 263,
   "qf_pct": 31.18,
   "ci": [
    25.89,
    37.01
   ],
   "dist": {
    "enforced": 68.82,
    "missing": 31.18
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-13",
   "n": 264,
   "qf_pct": 31.44,
   "ci": [
    26.14,
    37.27
   ],
   "dist": {
    "enforced": 68.56,
    "missing": 31.44
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/https-redirect/jp"
}