help with set headers htaccess
following on from this thread about setting expire headers
2 points came out of that discussion
1) does my host provider allow headers to be set
2) I should use htaccess
I have checked with my host provider to see if I am allowed to set headers and they said
"If that is any change that you can carry out via .htaccess then you can but if that needs any modules installation server wide, then its not supported."
So I think I can.
and I have read info on htaccesss given in this link
so now I have this in my htaccess (from above link)
Header set Cache-Control "public"
Header set Expires "Mon, 01 Jan 2013 20:00:00 GMT"
I have two issues
1) I have no idea if this is right or if it is being applied ----- how do I check / know if these headers are set?
2) I think I should also set a Last-Modified header too --- but I can't find an example to copy to add in to the above.
I really need some help
by the way Firefox xhows this for response header info
Date: Tue, 24 Jan 2012 12:52:22 GMT