Cache static content at D

Hello Evereyone
I have just tested my website and everything looks fine, mostly A and B, but the cache static content is very high at D, does anyone know what might be a problem ?
ThanksEkspert Bankowy

Hi, You have not set the cache time for your images long enough. Most of your images are set at 2-3 days. You need to set your cache-control expire time to at least a week on jpg & gif. An example is as below if your using .htaccess.

ExpiresActive On ExpiresByType image/jpg "access 1 month" ExpiresByType image/gif "access 1 month"