Here are my tests results:
http://www.webpagetest.org/result/150813_CA_GRK/1/details/
In find the first DNS resolve time pretty long (according to my inexperienced judgment) and that probably explains the Grade D
If I run the test against the www version, then I get grade A or sometimes B.
The permanent redirection from non-www to www is done in the vhost file of my Apache server. I did something like that:
[code]
Assuming that Apache listens on 127.0.0.1
<VirtualHost 127.0.0.1>
ServerName domainname.com
Redirect permanent / http://www.domainname.com/
<VirtualHost 127.0.0.1>
ServerName www.domainname.com
other directives to process www.domainname.com
[/[/code]code]Could someone provide me with a hint to improve the non-www version ?