merhabalar

Gtmetrix sitesinde kendi sitemi test ettim iki problem var onları nasil çözeceğimi anlamadim

Problem 1:
Leverage browser caching
The following cacheable resources have a short freshness lifetime. Specify an expiration at least one week in the future for the following resources:

images/icons/uye.png (5 days)
icons/facebook.png (5 days)
icons/twitter.png (5 days)

Remove unused CSS
64.2% of CSS (estimated 2.7kB of 4.2kB) is not used by the current page.

themes.css: 2.7kB of 4.2kB is not used by the current page.
.inlinemod
.wysiwyg
.bginput option, .bginput optgroup
.highlight
.fjsel
.fjdpth0
.panel
.panelsurround
legend
.vbmenu_hilite
.bigusername
.pagenav a
.pagenav td
.tcat .shade, .thead .shade, .tfoot .shade
.fieldset
.fieldset, .fieldset td, .fieldset p, .fieldset li