On google page speed test, it logically suggests to setup browser caching for static content, like .js .css etc.
"A long cache lifetime can speed up repeat visits to your page."
I am setting this up, but for how long? There must be best practice on this, as I don't know if 7 days or 77 days is a good idea. Perhaps subjective, site dependent and all that usual stuff, so is the longer the better? A year perhaps?
I have cache busting enabled, so future updates aren't an issue for my website.