SSL Checker

Verify your website’s SSL certificate quickly with our SSL Checker. Check your site’s security status, expiration date, and certificate details easily and accurately.

What Is an SSL Checker?

An SSL Checker is a tool that verifies the proper installation and functionality of a Secure Sockets Layer (SSL) certificate on a website. It checks the certificate’s validity, expiry date, issuer, common name, chain of trust, and other vital elements that ensure secure HTTPS communication. Our free SSL certificate checker helps you identify misconfigurations, outdated certificates, or trust issues instantly.

Features of Our SSL Checker Tool

  • Check SSL certificate validity and expiration date
  • Verify hostname match and wildcard domains
  • Detect intermediate chain issues and certificate path errors
  • Identify certificate issuer, algorithm, and encryption strength
  • Evaluate protocol support such as TLS 1.2, 1.3
  • Display certificate subject and SAN (Subject Alternative Names)
  • Fully browser-based and mobile-friendly
  • Free SSL check with no login or download required

How the SSL Checker Works

Our SSL Certificate Checker connects to your website over HTTPS and retrieves certificate details directly from the server. Here’s how it works:

  1. You enter a domain name into the checker
  2. The tool connects to the domain over port 443 (HTTPS)
  3. The certificate chain is analyzed and presented
  4. Key metrics like expiry, issuer, CN, and SAN are displayed

This fast and accurate process helps domain owners, developers, and security professionals validate SSL configurations and ensure secure web communication.

Benefits of Using an SSL Checker

  • Prevent HTTPS errors and browser warnings by fixing SSL issues early
  • Identify expiring SSL certificates before they cause downtime
  • Ensure compliance with security standards and best practices
  • Maintain customer trust with secure browsing experiences
  • Improve SEO rankings by maintaining HTTPS coverage
  • Spot self-signed or expired certificates that may pose risks

Who Should Use the SSL Checker?

Our SSL checking tool is ideal for anyone managing, deploying, or auditing SSL certificates. This includes:

  • Website administrators maintaining HTTPS environments
  • Web developers ensuring proper SSL integration during development
  • Security analysts auditing domains for encryption compliance
  • Hosting providers monitoring clients’ SSL statuses
  • IT professionals managing enterprise-wide SSL deployments

Common Use Cases for SSL Checking

  • Verifying if SSL is properly installed on a new domain
  • Checking when your SSL certificate will expire
  • Diagnosing SSL trust issues with browsers
  • Ensuring intermediate certificates are correctly configured
  • Auditing large domains with wildcard or SAN certificates
  • Testing renewed or replaced SSL certificates

Frequently Asked Questions (FAQs)

What does the SSL Checker do?

The SSL Checker verifies if a website’s SSL certificate is valid, trusted, properly installed, and not expired. It also reveals certificate details such as issuer, CN, SAN, and encryption strength.

Is the SSL Checker tool free?

Yes. Our SSL Checker is 100% free to use and requires no signup or installation.

How can I check if my SSL is installed correctly?

Simply enter your domain in our SSL check tool and it will display whether the SSL certificate is correctly installed and trusted.

Can I check wildcard SSL certificates?

Yes. The tool detects and supports wildcard SSL certificates by verifying CN and SAN entries.

Does it show SSL expiration dates?

Absolutely. One of the key functions is to show the SSL certificate’s expiration date so you can renew it in time.

What happens if my certificate is expired?

An expired SSL certificate triggers browser warnings, decreases trust, and may block users from accessing your site. Use our SSL certificate checker to prevent this.

Will it work for subdomains?

Yes. You can check SSL status for subdomains as long as the certificate covers them or includes a wildcard entry.

Does this tool support international domains?

Yes. The SSL validation tool works with all domains, including internationalized domain names (IDNs).

Can it detect intermediate certificate issues?

Yes. The tool flags incomplete certificate chains or missing intermediates that may cause trust errors in browsers.

Is it safe to use the SSL Checker?

Yes. The tool performs non-invasive HTTPS checks and does not store any domain or personal data.

Final Thoughts

Maintaining a valid and trusted SSL certificate is essential for modern websites. Our SSL Checker gives you the tools to instantly inspect your HTTPS setup, fix SSL-related issues, and ensure security for your visitors. With zero cost and instant results, there’s no reason to let SSL errors affect your credibility or rankings. Use our free SSL checking tool now to stay compliant, secure, and ahead of SSL expiration.