Common names do not match: DLG_FLAGS_SEC_CERT_CN_INVALID

Hi, I have created one single certificate that contains the two domains “” and “”. Both webs do use the same web-server, but only different directories. For the SSL works perfect. Now accessing the the error DLG_FLAGS_SEC_CERT_CN_INVALID is shown. The message from SSL-Checker says: "None of the common names in the certificate match the name that was entered ( You may receive an error when accessing this site in a web browser.

FYI: The certificate has been created using the service:

Any ideas?

Best Regards

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Without real domains to look at, I would have to guess that you only typed in the first domain when you used

You need to list both domains, separated by spaces, to have them both listed on your certificate. Just go back to and request a new certificate listing both domains, and replace your old certificate with this new one, and you should be all set.

The other possibility is that you have two (or more) virtual hosts in your web server, and you did something to tell the web server to associate the certificate with one of the virtual hosts, but not with the other. In that case the web server would only know to present the certificate in response to requests related to one domain, but not to the other.

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Many thanks for the hints. Is there a online service to check the domains used into a issued certificate?

BR Chris

Sure, the test at SSL Server Test (Powered by Qualys SSL Labs) will show that, with much more information as well.

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