1. While analyzing my Mediawiki page with Google Pagespeed, I see that it recommended me to use Keep-Alive tag.

Is there anyway, I could use it on my mediawiki site?

2. Also, Is it possible to cache the static resources for longer cache times.  Eg: /w/load.php?debug=false&lang=en&modules=mediawiki.legacy.commonPrint%2Cshared&only=styles&skin=monobook&* has 5 minutes expiry. I don't change CSS much, so its better, I put the expiration to one month or more..

Cheers, Castor