{
 "metric": "cert-lifetime-readiness",
 "segment": "gb",
 "anchor": "domain",
 "label": "the UK (domains)",
 "population": "domains in the UK",
 "states": [
  "short_lived_ready",
  "long_lived"
 ],
 "quiet_failure_states": [
  "long_lived"
 ],
 "measurement": "Tier 1. Validity window of the serving certificate. Denominator: `has_web`.",
 "why_it_matters": "The CA/Browser Forum is phasing certificate lifetimes down to 47 days. Any domain still on long-lived certificates has a manual renewal process that is about to break several times a year — a deadline-driven quiet failure that has not fired yet.",
 "limits": null,
 "data_tier": "ct",
 "population_predicate": "has_web",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-15",
  "n": 166,
  "qf_pct": 24.1,
  "ci": [
   18.22,
   31.14
  ],
  "dist": {
   "short_lived_ready": 75.9,
   "long_lived": 24.1
  },
  "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
 },
 "series": [
  {
   "day": "2026-08-05",
   "n": 167,
   "qf_pct": 23.95,
   "ci": [
    18.11,
    30.96
   ],
   "dist": {
    "short_lived_ready": 76.05,
    "long_lived": 23.95
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-06",
   "n": 168,
   "qf_pct": 23.81,
   "ci": [
    18,
    30.79
   ],
   "dist": {
    "short_lived_ready": 76.19,
    "long_lived": 23.81
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-08",
   "n": 166,
   "qf_pct": 24.1,
   "ci": [
    18.22,
    31.14
   ],
   "dist": {
    "short_lived_ready": 75.9,
    "long_lived": 24.1
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  },
  {
   "day": "2026-08-15",
   "n": 166,
   "qf_pct": 24.1,
   "ci": [
    18.22,
    31.14
   ],
   "dist": {
    "short_lived_ready": 75.9,
    "long_lived": 24.1
   },
   "snapshot": "common-crawl-domain-stratified-c400-g2500-seed20260729"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/cert-lifetime-readiness/gb"
}