Is it possible to issue an SSL certificate for an IP address, instead of a FQDN (domain name)?

The answer is "Yes, it is possible", but there are several requirements:

  • It's not possible issue DV or EV certificates: only OV SSL certificates can be issued for an IP;
  • It may be issued only to a Company;
  • the company must be reported on whois data of that IP address (validation based on WHOIS information of IP-addresses).
    So, the Company is required to be LIR, or must obtain from the LIR that their IPs (usually a full class) be whois registered to the Company.

Certification authorities do not issue DV or EV SSL certificates (with domain verification) for IP-addresses, because it creates security threats.

 

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