The new certificate is also grade-A
We are available over IPv4 and v6.https://www.ssllabs.com/ssltest/analyze.html?d=ut99.org
The only issues I can see are a problem with old Androids (v2.3.7) and Windows XP with IE 6 and 8.
This is due to the lack of "Server Name Indication" http://www.networking4all.com/en/ssl+ce ... ndication/
If you still use XP or an old Android, make sure you use a different browser.
For Windows XP Firefox has more SSL extensions and protection options, and Opera Mini for Android will give you the best browser on mobile phones.