Testing if a URL requires SNI
<p>I have <a href="https://www.centralbaptistchelmsford.org" rel="nofollow">a site</a> which is served over HTTPS, but which iTunes can't find. My suspicion is that it's related to the iTunes backend server being Java 6, and Java 6 not supporting SNI. SSL Labs seems to hint that my site does require SNI (see <a href="https://www.ssllabs.com/ssltest/analyze.html?d=centralbaptistchelmsford.org" rel="nofollow">this report</a>, and search for SNI), but I can't think why. Have I misunderstood multi-domain certificates? I've got multiple sites running on the same server, but my understanding was that as long as all the URLs were listed as Subject Alternative Names on the certificate, that all would be well.</p>

<p>Does anyone know a good way to check if a URL requires SNI support on the client to access it? I don't have a Windows XP/Java 6 install around to play with sadly.</p>