Code to make HTTP caching work

Question

I am reading about HHT caching, found a website article here which explains some things but I still don't get it since I am a total newb and its the first time I have heard of this.

First of all, using firebug I have noticed that I have some elements which rarely change like: 1. sites logo; 2. sites css; 3. sites jquery; 4. about 4 images which are used for styling.

I found this code:

ExpiresActive On
ExpiresDefault A0


# 1 YEAR - doesn't change often
<FilesMatch "\.(flv|ico|pdf|avi|mov|ppt|doc|mp3|wmv|wav)$">
ExpiresDefault A29030400
</FilesMatch>

# 1 WEEK - possible to be changed, unlikely
<FilesMatch "\.(jpg|jpeg|png|gif|swf)$">
ExpiresDefault A604800
</FilesMatch>

# 3 HOUR - core content, changes quickly
<FilesMatch "\.(txt|xml|js|css)$">
ExpiresDefault A10800
</FilesMatch>

But:

I don't know where to put it. I'm not sure I can modify my htaccess because I have wordpress which rewrites everything. Where does this code go?
Is there a code I can put in the sites header, maybe php?
While I have css, js, jpg elements that do not change, I have others that do change, sometimes every 5 minutes because of a cronjob. The code above dictates the files by gender. I need a way to specify the exact files which need caching.

Please help:)

score 0 · Accepted Answer · edited May 23 '17 at 12:04

0

What you see there is configuration code for the apache conf. You could very specifically set the caching meta information there. The approach to set this information by file extentsion is a good start.

However, you might want to have a look here: How to set HTTP headers (for cache-control)?

edited May 23 '17 at 12:04

Community

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answered Aug 07 '12 at 21:37

Kai Mattern

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Ty for answering, read that: "To use cache-control, you do so using the meta tag, e.g." - how do I choose the files to cache? – webmasters Aug 07 '12 at 21:42
Basically you would have to manipulate the http header of your http responses. But that is really tedious. You might be better of and much more flexible with the apache approach. – Kai Mattern Aug 07 '12 at 21:51
Can I modify the apache on shared hosting? Where do I need to look? – webmasters Aug 07 '12 at 21:57
There your only chances are to use .htaccess files. – Kai Mattern Aug 08 '12 at 11:42

Code to make HTTP caching work

1 Answers1