Error: net::err_cert_common_name_invalid

Topic summary

Issue: Some customers receive the browser error NET::ERR_CERT_COMMON_NAME_INVALID when accessing moronisbikes.com.au, reported across multiple browsers.

Context: The site owners cannot reproduce the problem; on their own devices the connection is shown as secure and the SSL certificate appears valid.

Meaning of error: Typically indicates a mismatch between the domain requested and the TLS/SSL certificate’s Common Name or Subject Alternative Name (SAN), causing browsers to reject the certificate.

Scope/impact: Affects only a subset of users; not universal.

Status: No diagnostics or fixes reported yet. The poster is seeking help; issue remains open/unresolved.

Summarized with AI on December 18. AI used: gpt-5.

Hi

Some of our customers are encountering this issue when trying to check our website, it seems to be affecting all browsers.

When we check our website from our computers/phones it says Connection is secure & SSL is valid. So I don’t know why it is only affecting some people.

The domain is: moronisbikes.com.au

Thanks