Certificate expiry · Ireland (domains)
What share of domains in Ireland have a TLS certificate expiring within 30 days, or expired?
6.33% of domains in Ireland (95% CI 3.87–10.18%), measured across 237 domains on 2026-11-04.
A small minority · in line with the global rate of 6% · up 0.5 points since 1 November
Measured every Wednesday since 2026-08-01 — 16 observations to date. Last measured 2026-11-04.
How this is measured
Tier 2, one TLS handshake; read not_after. 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 certificate nobody owns. Expiry is a scheduled, entirely predictable outage that still takes sites down constantly, because renewal was somebody's manual task and that somebody left.
The same check, other segments
- Vietnam (domains)16.79%
- Czechia (domains)15.77%
- Russia (domains)15.45%
- Japan (domains)11.86%
- Austria (domains)11.36%
- Taiwan (domains)11.2%
- the EU (domains)10.29%
- Poland (domains)9.68%
Show the remaining 63 segments
- South Korea (domains)9.4%
- Slovakia (domains)9.32%
- Norway small companies9.17%
- Hong Kong (domains)8.76%
- the Philippines (domains)8.76%
- Argentina (domains)8.72%
- UK medium & large companies8.21%
- France micro companies8.07%
- Hungary (domains)8.04%
- Spain (domains)7.96%
- Indonesia (domains)7.58%
- UK micro companies7.22%
- Luxembourg (domains)7.14%
- Finland (domains)7.14%
- India (domains)7.14%
- Germany (domains)7.06%
- UK companies6.91%
- Latvia (domains)6.73%
- Turkey (domains)6.55%
- France (domains)6.48%
- Norway (domains)6.44%
- global domains6.4%
- Norway large companies6.29%
- Norway medium companies6.21%
- Italy (domains)6.19%
- Norway companies6.17%
- UK small companies6.02%
- Ukraine (domains)6%
- Peru (domains)5.85%
- UK newly-formed (no accounts filed) companies5.84%
- Iceland (domains)5.77%
- Australia (domains)5.71%
- France companies5.68%
- the UAE (domains)5.48%
- Saudi Arabia (domains)5.46%
- France small companies5.45%
- Croatia (domains)5.43%
- Estonia (domains)5.22%
- Canada (domains)5.15%
- Belgium (domains)5.13%
- the UK (domains)4.88%
- UK dormant companies4.83%
- Singapore (domains)4.55%
- Malaysia (domains)4.52%
- Denmark (domains)4.39%
- Greece (domains)4.31%
- Lithuania (domains)4.18%
- Portugal (domains)4.05%
- Switzerland (domains)4.04%
- Romania (domains)4.03%
- Thailand (domains)3.92%
- South Africa (domains)3.79%
- Brazil (domains)3.66%
- Chile (domains)3.6%
- the Netherlands (domains)3.5%
- Bulgaria (domains)3.47%
- Sweden (domains)3.38%
- Mexico (domains)3.35%
- France medium companies3.17%
- Norway micro companies3.12%
- New Zealand (domains)3.02%
- Slovenia (domains)2.67%
- Israel (domains)2.4%