I'm trying to speed up a wordpress site -- this site: http://richardclunan.net
I'm following the observations here: http://gtmetrix.com/reports/richardclunan.net/9ps7Zc0j
The first item says: "The following cacheable resources have a short freshness lifetime. Specify an expiration at least one week in the future for the following resources:"
How do I specify expirations for those things?
(I'm not very technically-minded, and likely won't know relevant terminology -- really appreciate baby-steps explanation if possible :)