SSL Certificate Checker
Verify SSL/TLS certificates for any website. Check certificate validity, expiration dates, issuer information, and security features to ensure your connection is secure.
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Analyzing SSL certificate...
Security Rating:
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Certificate Overview
Security Features
Subject Information
Issuer Information
Certificate Extensions
How to Use This SSL Certificate Checker
- Enter a URL: Type the complete URL of the website you want to check (including https://).
- Check Certificate: Click the "Check Certificate" button to analyze the SSL/TLS certificate.
- Review Summary: Check the certificate's validity, expiration date, and security rating.
- View Details: Switch to the "Certificate Details" tab to see comprehensive information about the certificate.
- Examine Chain: View the certificate chain to understand the trust path from your site to a trusted root certificate.
Tip: Regular certificate checks are recommended to ensure your SSL certificates don't expire unexpectedly, which could lead to security warnings for your users.
Frequently Asked Questions
An SSL/TLS certificate is a digital certificate that authenticates a website's identity and enables an encrypted connection. These certificates are essential for securing data transmitted between a user's browser and a web server. When a website has a valid SSL certificate, the connection is encrypted, and users see a padlock icon in their browser's address bar, indicating that the connection is secure.
Checking SSL certificates is important for several reasons:
- Security: Ensures your website's connection is properly encrypted
- Trust: Verifies that your certificate is valid and trusted by browsers
- Expiration: Helps prevent unexpected certificate expirations that can cause downtime
- Compliance: Many regulations require secure connections for handling sensitive data
- SEO: HTTPS is a ranking factor for search engines
There are several types of SSL/TLS certificates:
- Domain Validation (DV): Basic certificates that verify domain ownership only
- Organization Validation (OV): Intermediate certificates that verify both domain ownership and organization information
- Extended Validation (EV): Highest level of validation that requires rigorous verification of the organization's identity
- Wildcard Certificates: Secure a domain and all its first-level subdomains
- Multi-Domain (SAN) Certificates: Secure multiple domains with a single certificate
If your certificate is expiring soon, you should:
- Contact your certificate provider or SSL vendor to renew the certificate
- Generate a new Certificate Signing Request (CSR) if required
- Purchase and install the renewed certificate before the expiration date
- Verify the installation was successful using this SSL checker tool
- Set up monitoring and reminders for future expirations