Is it possible to run ENTIRE site (not just images, etc) via CDN?

[Marvin]

The above screenshot is of a 1st and 2nd test run using the Sydney, AU test location. It illustrates the issue with the short DNS TTL of my CDN (or all CDNs?). In this case, the long DNS lookup time almost doubles the load time of my home page. I don't think there is anything I can do, and I don't think CDN providers can change the TTL. :-(