Hi SEO guys tell me, i should set for the static files (like pictures) a longer cache time. I check in admin > all settings and found commonsettings.staticfilescachecontrol can i read somewhere what files it's means?
I have there default value: public,max-age=604800 it's minutes? hours? days?
Can someone tell me is it good idea to increase it? what impact for my store make this change? is any risk?
Is it possible to change cache time for pictures?