SSL Lookup
SSL Lookup inspects the certificate presented by a hostname on a chosen port. See the steps, compare a practical example, and understand the key limitations.
SSL Lookup inspects the certificate presented by a hostname on a chosen port. Use the certificate details to investigate an unexpected issuer, an expiration concern, or a service that appears to present the wrong certificate.
How to use SSL Lookup
- Enter the hostname rather than a full page URL.
- Keep the HTTPS port or enter the service port you intend to inspect.
- Submit the form and compare the certificate fields with the expected host.
Example and interpretation
For a website on the usual HTTPS port, check example.com with port 443. The certificate returned by that endpoint is the relevant evidence, even if another hostname uses the same infrastructure.
Treat the displayed result as evidence about the submitted target and the particular check performed. Compare the exact hostname, protocol, and input with your original question before changing a configuration. A failed request and a negative finding are different outcomes.
Limits to consider
The result is a certificate inspection, not a complete vulnerability assessment or a guarantee that every client trusts the connection. Firewalls, alternate ports, and certificate selection can affect what the checking server receives.
Questions about SSL Lookup
Does a certificate prove a site is trustworthy?
No. A certificate concerns the TLS endpoint and identity validation, not the accuracy or safety of page content.
Can I inspect another port?
Yes. Use the port field for the TLS service you intend to check.
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