Check SSL Certificate and its Correct Operation

An SSL certificate encrypts data between your website and visitors' browsers, ensuring secure communication. It's essential for protecting sensitive information, increasing trust, and improving SEO rankings.

Our tool checks certificate validity, expiration date, issuer information, encryption strength, certificate chain, and identifies common SSL issues like mixed content or certificate mismatches.

Check your SSL certificate monthly and set up expiration alerts. Many certificates expire annually or biennially. Automatic renewal is recommended to prevent service disruption.

Immediately renew or replace the certificate. Contact your hosting provider or certificate authority. Until the issue is resolved, visitors will see security warnings, which can undermine trust and SEO rankings.

Yes, services like Let's Encrypt provide free SSL certificates. Many hosting providers offer automatic SSL installation and renewal. Free certificates provide the same encryption as paid ones for most use cases.

SSL (Secure Sockets Layer) is the predecessor to TLS (Transport Layer Security). While the term SSL is still widely used, TLS technology is actually in use today, offering improved security.

Mixed content occurs when an HTTPS page loads resources (images, scripts, stylesheets) over HTTP. This compromises the page's security, as unencrypted resources can be intercepted or tampered with, and browsers will display security warnings.

A Wildcard SSL certificate secures the main domain and all its unlimited subdomains (e.g., *.example.com). This is a cost-effective and convenient solution for websites with many subdomains.