So I just got a call from NS support saying they "fixed" it and evidenced our site working as proof. However, our DNS guru implemented the temp fix that made it work, so... Also, when I asked what it was that changed and if/when we need to make a change to make things more secure again, the rep gave me a non-answer that they didn't have any notes as to what actually happened. Only that it affected SiteBuilder sites whether or not there was a CDN involved. Can you verify @wes_w is your site working now?