Certificate lifetime · Thailand (domains)

What share of domains in Thailand have certificates issued for longer than the 47-day maximum?

12.32%

12.32% of domains in Thailand (95% CI 8.48–17.55%), measured across 203 domains on 2026-08-15.

short_lived_ready: 87.68%long_lived: 12.32%
short_lived_ready · 87.68%long_lived · 12.32%
Trend

Measured every Saturday since 2026-08-01 — 4 observations to date. Last measured 2026-08-15.

How this is measured

Tier 1. Validity window of the serving certificate. Denominator: has_web.

Passive measurement: a single DNS lookup, TLS handshake, or homepage GET per domain. Aggregate-only; no individual company is named. 95% Wilson confidence intervals. Population: domains sampled from the Common Crawl web graph, filtered to those that do email. Parked domains excluded. Snapshot: common-crawl-domain-stratified-c400-g2500-seed20260729.

Licensed CC BY 4.0 — reuse with attribution to Quiet Failures. Download: JSON · CSV.

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.

The same check, other segments

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