Legacy TLS · France micro companies
What share of France micro companies have legacy TLS 1.0/1.1 still enabled?
9.79% of France micro companies (95% CI 5.92–15.76%), measured across 143 companies on 2026-08-13.
Measured every Thursday since 2026-08-01 — 2 observations to date. Last measured 2026-08-13.
How this is measured
Tier 2, via the DomainAPI TLS endpoint, which tests each protocol version explicitly. 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: national company registries (Companies House, Brreg, SIRENE), sampled by size band and resolved to email-active domains. Parked domains excluded. Snapshot: sirene-france-per600-seed20260730.
Licensed CC BY 4.0 — reuse with attribution to Quiet Failures. Download: JSON · CSV.
Why it matters
Supporting a deprecated protocol version is invisible from the browser — the site loads over TLS 1.3 and looks modern — while the server remains willing to downgrade for anything that asks.
Limits of this measurement
Must be measured server-side. A modern client cannot detect this, because its own OpenSSL refuses to offer TLS 1.0/1.1.
The same check, other segments
- Ukraine (domains)55.5%
- South Korea (domains)50.94%
- Russia (domains)41.83%
- Thailand (domains)31.71%
- Turkey (domains)27.54%
- Vietnam (domains)27.54%
- Saudi Arabia (domains)27.2%
- Hong Kong (domains)27.18%
Show the remaining 65 segments
- Indonesia (domains)23.19%
- Israel (domains)22.17%
- Latvia (domains)22.03%
- Portugal (domains)21.88%
- Greece (domains)21.48%
- Brazil (domains)20.1%
- Spain (domains)19.43%
- the Philippines (domains)18.06%
- Argentina (domains)17.77%
- Taiwan (domains)17.04%
- Iceland (domains)16.67%
- the EU (domains)16.57%
- Bulgaria (domains)16.44%
- Malaysia (domains)16.42%
- the US (domains)15.84%
- Croatia (domains)15.64%
- global domains15.5%
- New Zealand (domains)15%
- Lithuania (domains)14.45%
- Ireland (domains)14.11%
- South Africa (domains)13.55%
- Mexico (domains)13.33%
- the UAE (domains)12.73%
- Hungary (domains)12.59%
- Singapore (domains)12.56%
- Romania (domains)12.4%
- Chile (domains)12.28%
- Luxembourg (domains)12.24%
- France (domains)12.16%
- UK medium & large companies12.05%
- France medium companies11.81%
- UK small companies11.61%
- Slovenia (domains)11.48%
- Japan (domains)11.46%
- the UK (domains)11.45%
- Peru (domains)11.37%
- Norway (domains)11.34%
- UK companies11.3%
- UK dormant companies10.88%
- Canada (domains)10.82%
- Italy (domains)10.74%
- Australia (domains)10.59%
- the Netherlands (domains)10.53%
- Slovakia (domains)10.42%
- UK newly-formed (no accounts filed) companies10.26%
- Norway large companies9.86%
- Czechia (domains)9.27%
- Belgium (domains)8.96%
- Norway micro companies8.85%
- France companies8.64%
- UK micro companies8.15%
- India (domains)8.14%
- Poland (domains)8.11%
- Estonia (domains)7.69%
- Norway companies7.22%
- Germany (domains)7.22%
- France small companies7.19%
- Denmark (domains)6.96%
- Finland (domains)6.56%
- Sweden (domains)6.1%
- Austria (domains)6.09%
- France large companies5.61%
- Norway medium companies5.48%
- Norway small companies5.42%
- Switzerland (domains)5.05%