Server TLS version
TLS (Transport Layer Security) is the protocol that encrypts communications between the browser and server. There are several versions: TLS …
Analyse my site for free
← All checks
How it works
How TheSiteFuse checks "Server TLS version"
TLS (Transport Layer Security) is the protocol that encrypts communications between the browser and server. There are several versions: TLS 1.0 (1999, vulnerable), TLS 1.1 (2006, obsolete), TLS 1.2 (2008, acceptable) and TLS 1.3 (2018, recommended). This check reports which version the server negotiates.
Why it matters
Real-world impact of "Server TLS version"
TLS 1.0 and 1.1 contain known vulnerabilities (POODLE, BEAST) and were officially deprecated by the IETF in 2021. Modern browsers reject them. TLS 1.3 is faster (1 round trip instead of 2) as well as more secure.
Does your site pass this check?
Run the free full audit (120 checks) and instantly discover what needs fixing.