This site feels ridiculously fast. I've noticed that with other compiled frameworks too, e.g. CppCMS: http://cppcms.com/wikipp/en/page/main
I wonder if it is just the lightweight HTML the websites use, or if there is really so much speed to gain from using a compiled language.
Commenters on this site had similar observations about D language's forum, which is written in D.
http://forum.dlang.org/ \nCode: https://github.com/CyberShadow/DFeed
If one insists on writing a webapp in a C/C++ like language, D might be the sane way to do it.