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SSL Certificate Checker

Verify SSL/TLS certificate security for any website

Frequently Asked Questions

What is SSL?
An SSL/TLS certificate authenticates a website and enables encrypted HTTPS connections.
How to check validity?
Enter the domain here to check certificate validity, expiration, issuer, and security details.
What if SSL expires?
Browsers show security warnings, visitors lose trust, and search rankings may drop.
How long does an SSL certificate last before it expires?
Most commercial SSL certificates last 1 year (397 days maximum). Free certificates from Let's Encrypt last 90 days. Always set up auto-renewal to avoid unexpected expiration.
What is the difference between SSL and TLS?
TLS (Transport Layer Security) is the successor to SSL (Secure Sockets Layer). Modern HTTPS connections use TLS 1.2 or 1.3, but the term SSL is still commonly used to refer to both.

Why SSL Certificates Matter

SSL (Secure Sockets Layer) certificates are essential for website security. They establish an encrypted connection between your browser and the server.

Encryption: SSL certificates encrypt data transmitted between users and the website, protecting sensitive information.

Authentication: They verify that you're connecting to the legitimate website and not an imposter.

Trust: Browsers display a padlock icon for sites with valid SSL, building user confidence.

Certificate Types

Domain Validated (DV): Basic encryption, verifies domain ownership only. Suitable for blogs and small sites.

Organization Validated (OV): Verifies organization identity. Better for business websites.

Extended Validation (EV): Highest level of validation with strict verification. Shows organization name in browser.