Certificate lifetime readiness · DigiCert Inc (certificates)
What share of certificates issued by DigiCert Inc have a validity window longer than the 47-day maximum being phased in?
73.28% of certificates issued by DigiCert Inc (95% CI 71.02–75.43%), measured across 1,542 certificates on 2026-08-09.
Measured every Sunday since 2026-08-01 — 5 observations to date. Last measured 2026-08-09.
How this is measured
Stream a Certificate Transparency log, parse each leaf, compute not_after − not_before. Population unit: certificate; segmented by CA.
Built entirely from public bulk feeds — no target is contacted. Aggregate-only. 95% Wilson confidence intervals. Population: certificates newly issued and logged to Certificate Transparency, grouped by issuing CA. Snapshot: ct-recent-12000.
Licensed CC BY 4.0 — reuse with attribution to Quiet Failures. Download: JSON · CSV.
Why it matters
The same deadline seen from the supply side. It shows which CAs have already moved their customers to automated short-lived issuance and which are still writing certificates that will be non-compliant — a per-CA readiness table nobody else publishes.
Limits of this measurement
Measured over a sample of recent issuance, so it reflects current practice rather than the installed base. The 47-day threshold was chosen after a 100-day cut returned 0% everywhere — issuance had already moved below it, leaving no variance to observe.