CHECK GLOSSARY · TLS-002

Outdated TLS version

In plain words: TLS 1.0 and 1.1 are deprecated and insecure.

How to fix it

Allow TLS 1.2 and 1.3 only.

Official sources

• IETF RFC 8996

Related checks

• HSTS-001: No HSTS header
• TLS-001: Certificate problem or near expiry
• HTTP2-001: HTTP/2 not enabled
• WWW-001: www and non-www both serve the site

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