SSL Certificate Checker

Check a hostname’s current TLS certificate issuer, coverage and expiry date.

Enter a hostname without a URL path and request the certificate check. Review its validity dates, issuer, hostname coverage and reported TLS protocol.

Enable JavaScript to run this public lookup.

How to use

Check a website certificate’s current expiry

Check a hostname’s current TLS certificate issuer, coverage and expiry date.

Step by step

Provide the source using: Domain or hostname.
Choose: Run lookup. Inspect the result before copying, downloading or using it elsewhere.
Enter a hostname without a URL path and request the certificate check. Review its validity dates, issuer, hostname coverage and reported TLS protocol.

Choosing the settings

Option	What changes
Domain or hostname	The service checks the certificate presented for the hostname at query time. This is a certificate summary, not a complete website security audit or a guarantee of future availability.
Run lookup	This tool sends the query you enter to the named public provider to request public registry, DNS, network or certificate information. ToolRobin does not store query values. The external provider receives the request and may process its network metadata under its own privacy policy.

Example and expected result

For a live public site, check whether the hostname is covered and when the certificate expires. Renewal and deployment change the result; this is a point-in-time check, not a complete security scan.

If it is not working

The service checks the certificate presented for the hostname at query time. This is a certificate summary, not a complete website security audit or a guarantee of future availability.
A timeout, provider error or blocked request is not evidence that the domain, IP address or certificate is invalid. Check the input, then retry later or compare with the authoritative service. Do not enter passwords or private URLs in a public lookup.

What the lookup sends

This tool sends the query you enter to the named public provider to request public registry, DNS, network or certificate information. ToolRobin does not store query values. The external provider receives the request and may process its network metadata under its own privacy policy.

What the result means

The service checks the certificate presented for the hostname at query time. This is a certificate summary, not a complete website security audit or a guarantee of future availability.

Lookup result