Leverage browser caching. Ummm?

[Shady Oaks]

Ok, so I get the "Should Fix" - Leverage browser caching

But, every item listed (mostly JS and images that are all cached) shows a cache expiration of 2 - 48 hours. What am I missing?

[Rick Steinwand]

Try "days" instead of "hours".... = )

For images that won't change, I use months.

For js and css which I might tweak more often, I use 7 days.

[Shady Oaks]

Thanks, but the length of time specified for each type of file is debatable. However, PS is suggesting that those files are NOT using browser cache - when a hundred other files (of the same types/same expirations) are not listed.

If it were an issue of expirations being short, why wouldn't it "Improve/Extend/Optimize Browser Caching"? Instructing you to leverage it kinda implies that its not being used.

[Rick Steinwand]

Without a link I guess we'll never know. = )