← All sixteen checks SSL/TLS Certificate

SSL/TLS
explained.

Overview

What is
SSL/TLS?

SSL/TLS certificates encrypt data transmitted between web browsers and servers, ensuring that sensitive information cannot be intercepted by attackers.

Importance

Why it
matters.

SSL/TLS is essential for protecting customer data and preventing man-in-the-middle attacks. Without it, all data transmitted is visible to attackers and browsers will show security warnings.

Risks

What can
go wrong.

If SSL/TLS is not properly configured: all data is transmitted in plain text, attackers can intercept and modify communications, browsers will show security warnings, and customer trust is compromised.

Under the hood

Technical
details.

SSL/TLS certificates contain: issuer information, subject (domain name), validity dates, public key, and digital signature. Certificates must be valid, not expired, and match the domain name. HTTPS should be forced (HTTP redirects to HTTPS).

Take action

Check your domain’s
SSL/TLS status.

Run a free security check to see how your domain scores across all sixteen checks, including SSL/TLS validation.