SSL Checker Online

About this tool

The XploreNetHub Online SSL Checker analyzes the SSL/TLS certificate of any website, showing issuer, validity, expiration date and the trust chain.

It lets you confirm that the HTTPS connection is correctly configured and that the certificate is trusted and still valid.

The check is instant, free and helps you avoid security warnings in your visitors' browsers.

How to use

  1. Type the domain you want to check (e.g. example.com).
  2. Click to analyze the SSL/TLS certificate.
  3. Review the issuer, validity dates and certificate status.
  4. Check for expiration alerts or misconfiguration.

Use cases

  • Confirm that a site's SSL certificate is valid and trusted.
  • Find out when a certificate will expire so you can renew in time.
  • Diagnose HTTPS errors and incomplete certificate chains.
  • Audit domain security before a migration or launch.

Frequently asked questions

What is an SSL/TLS certificate?

It is a digital certificate that enables encrypted HTTPS connections, ensuring data exchanged between browser and server is protected from interception.

How do I know if my SSL certificate is valid?

The SSL Checker shows the validity date and certificate status. If it has expired or the chain is incomplete, the tool flags the problem.

What happens when an SSL certificate expires?

When the certificate expires, browsers show security warnings and may block access to the site, hurting trust and traffic.

What is the certificate chain?

It is the sequence of certificates linking the site's certificate to a trusted root authority. An incomplete chain can cause errors on some devices.

Is the SSL Checker free?

Yes. The XploreNetHub Online SSL Checker is free, requires no sign-up and works in any browser.