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Is there a registar that offers SSL certificates for:





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Wouldn't * cover *.*.*.*.*.*...* – ceejayoz Apr 11 '10 at 21:15
Not a chance. This was the behaviour of mozilla browsers until relatively recently, but it violated the RFC and they fixed it. – Falcon Momot Jun 23 '14 at 21:52

3 Answers 3

Actually, wildcards only work on the first level of a subdomain in most browsers. So a wildcard certificate for * wouldn't work on

Web browsers also don't know what to do with a certificate for somthing.* either. You best option is to get a SAN certificate that you can include the specific hostnames in no matter what level they are on.

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"wildcards only work on the first level of a subdomain in most browsers". Do you have any references for this? I'm not disputing, just curious. – John Gardeniers Apr 12 '10 at 4:39
Certainly. RFC2818 ( states: "If more than one identity of a given type is present in the certificate (e.g., more than one dNSName name, a match in any one of the set is considered acceptable.) Names may contain the wildcard character * which is considered to match any single domain name component or component fragment. E.g., matches but not matches but not" – Robert Apr 13 '10 at 7:03
+1 Wildcard certs do indeed only work for the first level subdomain. – Tatas May 17 '10 at 15:28

In case it helps anyone, double wildcard certs don't actually work.

(from firefox) uses an invalid security certificate.

The certificate is only valid for *.*

(Error code: ssl_error_bad_cert_domain)

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As ceejayoz says - a standard wildcard certificate will do exactly what you desire.

I assume you're looking for that style of certificate because you want something cheaper? If so, then no can do, you have to purchase a wildcard.

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