TLS

Transport Layer Security (TLS) is the cryptographic protocol that secures communication over the internet, replacing the older SSL protocol. It provides authentication, confidentiality, and integrity for data in transit between clients and servers. TLS 1.3 is the current recommended version, offering improved performance and stronger security than older versions. Sites still running TLS 1.0 or 1.1 are considered insecure by modern browsers and compliance standards.

Why it matters for your website

• 1Affects your HTTPS rating and SSL grade on security scanners
• 2Required for PCI-DSS and SOC 2 compliance
• 3Browsers block insecure connections and show warnings to users