A cache is a component that transparently stores data so that future requests for that data can be served faster. The data that is stored within a cache might be values that have been computed earlier or duplicates of original values that are stored elsewhere.

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60
votes
13answers
5k views

Steps to Optimize WordPress in Regard to Server Load?

Besides installing W3 Total Cache or another caching plugin what steps can I take to make sure that my theme and site run as fast as possible.
22
votes
2answers
5k views

How well does WordPress scale?

With the new WordPress and it's new features, it seems like WordPress is capable of much more than a simple blog engine. But how well does WordPress scale being used by say 10k -> 100k users per day? ...
16
votes
6answers
14k views

W3 total cache - cache refresh programmatically [closed]

I am building a Digg like website in WordPress. After installing W3 Total Cache, I noticed certain elements such as number of votes (and voters ids) per post are cached even though they shouldn't be ...
10
votes
3answers
6k views

What is the best caching option for WordPress multi-site on non-shared hosting?

What caching plugin configuration do you recommend and why under the following assumptions: full control of the server configuration running WordPress in multi-site/multi-domain mode most domains ...
11
votes
3answers
32k views

Versioning @import of parent theme's style.css

Context I built a child theme based on Twenty Thirteen which works quite well. After updating the parent theme to version 1.3, I noticed strange behavior with the styling which was caused by a cached ...
23
votes
2answers
4k views

What are the best practices for using a caching plugin on a shared host?

I've launched quite a big site the other day and I'd like to incorporate a caching plugin. The setup is single-site with some Buddypress features mixed in (for user registration, maps with gpress, ...
18
votes
7answers
23k views

How do you avoid caching during development?

Is there a simple way do prevent all caching when testing the appearance of changes to the site? I use WP Super Cache. I can delete its cache using the option provided, delete the cache for my ...
1
vote
2answers
237 views

How to purge all transient caches?

Is there an easy way to delete all transient caches? A plugin maybe? Or like in drupal "drush cc all"?
4
votes
6answers
559 views

Does a low traffic WordPress site need a caching plugin and a CDN

I notice that many WordPress tips websites recommend using caching plugins. I tried it on one site that gets a relatively small amount of traffic, and hardly notice a difference in load time. Is it ...
6
votes
2answers
998 views

Configuring WordPress for Amazon CloudFront Caching?

Amazon CloudFront is a content distribution network (CDN) that can help you survive a huge amount of load in a short amount of time. What's the easiest way to configure WordPress to host its files ...
4
votes
1answer
3k views

Wordpress Browser Cache with W3-Total-Cache doesn't show new posts [closed]

I'm running the latest version of both Wordpress (3.5.1) and the always popular W3 Total Cache (0.9.2.8), but I'm having issues with the browser cache. Basically I can't figure out the settings to ...
2
votes
2answers
3k views

Clear cache when a post is submitted [closed]

I have a question. How can I clear the cache when a post is submitted ? Actually, I need to clear two speficied pages which display these articles ? By default, I have noticed the index.php is ...
4
votes
2answers
3k views

Forcing reload of editor-style.css

Is there a method to force the refresh of editor-style.css, when I change manually the stylesheet for the TinyMCE editor? Modification doesn't show immediately but they will be cached in the admin ...
3
votes
3answers
429 views

Stylesheet switching and caching

I'm implementing a site that allows users to switch stylesheets (to show a high contrast version for people with vision impairments). The switcher essentially just changes the <link>ref to ...
2
votes
3answers
2k views

Settings to get the most out of W3 Total Cache

I'm running a dedicated server which hosts one website - our WordPress install. Currently we're getting around 400,000 pageviews per month and that will likely rise quickly over the coming month - ...
1
vote
1answer
3k views

How to force content refresh of a page that has been loaded previously by the user? [closed]

How can any page on the site be forced to refresh or load content by ignoring anything in cache, everytime a visitor visits the page for the second time? The website uses twentyeleven & w3tc ...
1
vote
3answers
468 views

Transients vs CRON +Custom Fields: Caching Data Per Post

Wanted some opinions on a solution I'm trying to come up with: I have a fan/enthusiast plugin I'm working on for fans of TV shows. One of the custom post types attached to the plugin is a release ...
0
votes
1answer
131 views

Under heavy cache conditions, updating the parent theme don't reflect changes with child theme enabled

I use W3 Total Cache, Cloudflare (and CloudFront for media files). I use a Child Theme to customize specifically for my site while maintaining the core theme with the parent theme. Whenever I update ...
5
votes
3answers
717 views

Trouble with Transient API when W3TC is activated [closed]

I'm using W3 Total Cache 0.9.2.11 on Wordpress 3.5.2. I've got a problem with transient API and w3tc's object cache setting. When I activate 'object cache' with memcached (other settings are ...
1
vote
1answer
3k views

Can I ignore caching of a plugin in W3 Total Cache? [closed]

I currently have a plugin that lets me display a random post in a widget. The problem is that if I activate w3 total cache it will only display that post as long as the cache hasn't been cleared. Is ...
0
votes
1answer
40 views

How to make page/post password protected so you must reenter everytime you visit the page?

I added the following to the child-theme functions.php ///time out login so you must reenter it every time// add_action( 'wp', 'post_pw_sess_expire' ); function post_pw_sess_expire() { if ( ...
0
votes
3answers
93 views

Fixed version number for cached stylesheets and javascript

Unless i use: wp_enqueue_style( 'dazzling-style', get_template_directory_uri() . '/css/main.css?ver=', array(), rand(10,99999), 'all' ); Then everytime I visit my site, be it local or live, I see ...
0
votes
2answers
2k views

wp-super-cache exclude file from caching

Is there any mean to exclude a *.php file to WP Super Cache? I've in my single.php page an include news.php, the file news.php contains ten links to my last articles. So I want to cache single.php ...
-1
votes
2answers
309 views

Are get_bloginfo queries cached to start, or should they be cached?

I was just wondering if calling get_bloginfo too many times was going to harm performance in a theme and if the data should just be put into its own var?