In my browsers (firefox), when I go to ddo.com, I get the

This Connection is Untrusted

www.ddo.com uses an invalid security certificate.
The certificate is not trusted because no issuer chain was provided.
(Error code: sec_error_unknown_issuer)

Basically, I'm missing an intermediate certificate:

http://www.netsolssl.com/NetworkSolutions_CA.crt

Once I import that, everything checks out. My understanding is that the ddo.com web server should be passing down this intermediate cert but is not currently.... so it's possibly misconfigured.

I'm not a security expert, so I could be wrong (maybe it's something I did on my end who knows), but I'm letting you guys know my experience. It's a little disconcerting, especially as we're now passing actual game client credentials, and most of us faced with this page would just mark it as a trusted exception and move on.

p.s. the timeout for the website credentials is ridiculous