How to cache a file into client's cache?

[Betty_S]

Hi,

My site is a bit slow and I wonder if I can explicitly cache
A file (image) into client's cache (temporary files).

Is that possible?

Thanks.

[etully]

If their browser can cache, it will cache. In fact, it will cache to the point where most people ask the opposite question from what you are asking... How do I make my site not get cached? So not to worry, you're getting cached.

What is making your site slow? It's usually one of the following problems:

1. Too much junk on your page
2. Slowdowns on the server side (CPU, RAM, bandwidth, DB optimization, OS configs, etc)

[MarkR]

You can't cache a file if the browser doesn't fetch it. So the solution is to make the browser explicitly load the images- this is typically done with client side script.

The other issue is to ensure that it won't expire too soon from the client's cache - which is typically done by setting the "Expires" header. Other headers affect caching - read the HTTP documentation and get the Mozilla extension "live http headers".

You may need to do some web server specific configuration to set the "Expires" header etc on static files. For PHP files, the headers can all be set in PHP.

Mark

[Betty_S]

thanks