HTTPS availability
Whether the public HTTPS endpoint responds through the protected scan path.
Free SSL tool
Free SSL Certificate Checker
Check whether a website’s SSL certificate is valid and whether the site is available over a secure HTTPS connection.
CloudSpex highlights certificate validation and HTTPS availability issues, then explains what needs attention.
What is an SSL certificate checker?
An SSL certificate checker reviews whether a website can establish a trusted HTTPS connection for its hostname. It is a fast way to spot public certificate or HTTPS availability issues before they affect visitors.
What does CloudSpex check?
Certificate validation
Whether certificate validation succeeds while establishing the secure connection.
Secure connection result
Whether the protected HTTPS connection can be established for the target.
Blocked checks
Whether DNS or connection issues prevent the SSL check from being assessed.
Why SSL certificates fail
An SSL certificate may fail validation because it is expired, untrusted or incorrectly configured. This checker reports whether certificate validation succeeds, but it does not currently display the certificate expiration date.
SSL check vs SSL monitoring
One-time check
Shows the public certificate and HTTPS status now. Run it again manually after a change.
Continuous monitoring
Tracks certificate expiration, HTTPS availability and related configuration changes for monitored domains.
Frequently asked questions
What is an SSL certificate checker?
An SSL certificate checker makes a read-only HTTPS connection to assess whether a website certificate can be reached and validated for its hostname. It helps identify certificate and HTTPS availability issues before visitors encounter browser warnings.
What does the CloudSpex SSL checker test?
CloudSpex checks whether the website HTTPS certificate can be reached and validated, and whether the HTTPS endpoint responds. The public result is intentionally limited and does not expose certificate or server details.
Does CloudSpex show the certificate expiration date?
No. The current checker reports certificate validation and HTTPS availability, but it does not display the certificate expiration date or days remaining.
What does an invalid SSL certificate mean?
An invalid certificate can cause browsers to warn visitors that a connection is not private. Review the certificate deployment, DNS and HTTPS origin configuration before checking again.
Can a website use HTTPS and still have a certificate problem?
Yes. A website can respond over HTTPS while certificate validation still needs attention. This checker reports the public SSL and HTTPS signals it can safely assess.
Is this SSL certificate check free?
Yes. The public SSL certificate check is free and uses a limited, read-only scan.
Does the SSL checker make changes to the website?
No. It reads public-facing HTTPS signals only. It does not change certificates, DNS, website files or server configuration.
How often should SSL certificates be checked?
Run a check after certificate, hosting, DNS or CDN changes. Continuous monitoring is useful for catching expiration and HTTPS availability changes between manual checks.
SSL issues can appear after configuration changes.
Add your domain to CloudSpex to monitor HTTPS availability, certificate validation and related domain configuration changes.
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