Header code at the bottom 0_0

Is there a reason why the Header code is located below the content code?

 

Where? It could be the Redactor editor.

 

I wonder what is the reason for doing that.. What benefit this provides over the regular location.
This is the first time I see a site that does that.

 

I imagine it offers a slight perceived speed improvement as the content of the page is loaded first (what the user wants).

 

There is something in what you're saying

 

I hope so... sometimes I worry