SSL Certificate Analyzer

Analyze your website's SSL/TLS certificate to ensure it's secure, up-to-date, and properly configured. Get detailed information about certification path, algorithms, expiration, and potential security issues.

Enter a domain name without 'https://' (e.g., example.com)

Understanding SSL/TLS Certificates

SSL/TLS certificates are digital files that establish encrypted connections between web servers and browsers, ensuring data privacy and authentication. They're essential for website security, user trust, and compliance with modern web standards.

Why SSL Certificates Matter

  • Data Security: Encrypts sensitive information during transmission
  • Authentication: Verifies website ownership and identity
  • Trust Signals: Displays the padlock icon and "https://" in browsers
  • SEO Benefits: Improves search engine rankings
  • Browser Requirements: Modern browsers flag sites without SSL as "Not Secure"

Types of SSL Certificates

  • Domain Validation (DV): Basic verification of domain ownership
  • Organization Validation (OV): Verifies business legitimacy
  • Extended Validation (EV): Highest level of validation and trust
  • Wildcard Certificates: Cover multiple subdomains (*.example.com)
  • Multi-Domain (SAN): Secure multiple domains with one certificate

SSL Certificate Best Practices

Security Configuration

  • Use at least 2048-bit RSA keys or ECC
  • Implement modern protocols (TLS 1.2+)
  • Configure proper cipher suites
  • Enable Perfect Forward Secrecy

Maintenance & Renewal

  • Renew certificates before expiration
  • Set up monitoring and alerts
  • Implement auto-renewal when possible
  • Maintain secure private key storage

Enhancing Security

  • Implement HSTS headers
  • Add CAA DNS records
  • Use OCSP stapling for performance
  • Consider Certificate Transparency

Common SSL Certificate Issues

Critical

Expired Certificate

An expired certificate triggers browser warnings and prevents secure connections. Always renew before expiration dates.

High

Domain Mismatch

When your certificate doesn't match the domain visitors are accessing, browsers display warning messages.

Medium

Weak Ciphers

Older, deprecated encryption algorithms can make your site vulnerable to attacks even with a valid certificate.

High

Self-Signed Certificate

Certificates not issued by trusted CAs cause security warnings and lack the trust of properly validated certificates.

Medium

Incomplete Certificate Chain

Missing intermediate certificates can cause trust issues on some browsers or platforms.

Low

Missing Subdomains

Not including all required subdomains in your certificate can lead to mixed content warnings.

How to Use This Tool

  1. 1

    Enter Domain Name

    Enter the domain name without "https://" (e.g., example.com) in the form above.

  2. 2

    Review Certificate Details

    Check the overall score, expiration date, and issuer information.

  3. 3

    Examine Security Analysis

    Review any security issues and recommended actions to improve your certificate.

  4. 4

    Take Corrective Action

    Address any critical or high-severity issues to maintain optimal security.