SSL Checker

Check SSL/TLS certificate details, expiration, and security for any website.

SSL/TLS certificates are essential for securing communications between browsers and servers. Our SSL checker inspects any website's certificate details including issuer, expiration date, TLS protocol version, and cipher suite. Regular certificate monitoring helps prevent unexpected expirations and security warnings.

Result

Enter a URL and click "Check SSL".
In Action

SSL Checker in action

Customers report "your connection is not private" errors on one of your domains. Run the checker and you immediately see whether the certificate expired, covers the wrong hostname, or was issued by an untrusted CA — each has a different fix, and the tool tells you which one you are facing.

Frequently Asked Questions

What is an SSL certificate?

An SSL certificate encrypts the connection between your browser and a website.

How do I check if an SSL certificate is valid for free?

Enter the hostname and run the check — it shows issuer, valid-from and valid-to dates, and remaining days. The tool connects to the live server, so the result reflects what visitors actually receive right now.

What happens when an SSL certificate expires?

Browsers show a full-page security warning and block access until the certificate is renewed, which destroys visitor trust and can break APIs that verify certificates. Checking expiration dates regularly prevents surprise outages.

What is the difference between DV, OV, and EV certificates?

DV (domain validated) only proves domain control and is issued in minutes. OV adds organization identity checks, and EV previously showed the company name in the address bar. For most sites DV is sufficient; shops and banks usually choose OV or EV.