 Simple homographic matching of domain names has resulted in phishing attacks where a domain can appear to be legitimate, but is not.If a X.509v3 certificate is bound to a valid organization's distinguished name within the Directory, then a simple check can be made in regards to the authenticity of the certificate by a comparison with what is presented to the browser with what is present in the Directory.Some options do exist to check notaries to see if a certificate has only recently been seen, and therefore more likely to have been compromised.