To compress content before it is delivered to the client you can use Apache Module mod_deflate
To compress text/html text/plain text/xml text/css and js files in the IBM HTTP Server, add the below 2 lines to httpd.conf:
LoadModule deflate_module modules/mod_deflate.so
and restart IBM HTTP Server.
To see what files a browser is getting as compressed, in Firefox, you can create a shortcut... [More]