Free SSL Certificate Checker
Check your website's SSL certificate expiry date instantly. Monitor your HTTPS certificates and ensure your website security is up-to-date.
Check SSL Certificate Expiration
Understanding SSL Certificates
SSL (Secure Sockets Layer) certificates are digital certificates that authenticate a website's identity and enable encrypted connections. They're essential for website security, user trust, and SEO rankings.
Why Monitor SSL Certificate Expiry?
🔒 Security
Expired certificates expose your site to security vulnerabilities and attacks
👥 User Trust
Browser warnings about expired certificates damage user confidence
📈 SEO Impact
Search engines prefer sites with valid SSL certificates
💼 Business Continuity
Prevent service disruptions from unexpected certificate expiry
SSL Certificate Best Practices
- Set up automated certificate renewal (recommended for Let's Encrypt)
- Monitor certificate expiry dates regularly
- Use strong encryption algorithms (RSA 2048-bit minimum)
- Include all necessary domain variants (www, subdomain)
- Implement proper certificate chain validation
- Set up alerts 30-60 days before expiration
Common SSL Certificate Types
Domain Validated (DV)
Basic validation, quick issuance, suitable for personal websites
Organization Validated (OV)
Business verification included, better for commercial websites
Extended Validation (EV)
Highest level of validation, shows organization name in browser
Frequently Asked Questions
How often should I check my SSL certificate?
Check your SSL certificate monthly, and set up automated monitoring for critical websites. Most certificates are valid for 90 days (Let's Encrypt) or 1-2 years (commercial CAs).
What happens when an SSL certificate expires?
Browsers will show security warnings, users may see "Not Secure" messages, and search engines may lower your site's ranking. E-commerce sites may lose customer trust and sales.
Can I automate SSL certificate renewal?
Yes! Let's Encrypt offers free certificates with automated renewal. Many hosting providers also offer automatic SSL management for paid certificates.
What information does this tool show?
Our tool displays the SSL certificate expiry date, validity status, and helps you plan renewal schedules to avoid service interruptions.