How can D Forum load so fast?

[Ola Fosheim Grøstad via Digitalmars-d]

On Friday, 10 March 2017 at 07:51:30 UTC, Anon wrote:
> The whole webpage https://forum.dlang.org/ has only 300KB in 
> size. It not only supports mobile devices, but also loads much 
> faster than general modern web pages.
>
> How can they achieve such result?

Depends on your location, it loads in 253ms for me, which is 
typical for a page without graphics.