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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3answers
718 views

Is the W3 Total Cache plugin a good choice for WordPress MultiSite? [closed]

I heard that many people had issues with W3 Total Cache on a WordPress MultiSite install. And then I see this on the plugin page: Compatible up to: 3.2.1 Last Updated: 2011-8-26 Seeing that ...
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1answer
2k views

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

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 ...
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1answer
1k views

W3 Total Cache can't create files

I want to use W3 Total Cache plugin. Installed plugin succesfully but i'm trying to enable Page Caching and i'm getting this error : Page caching is not available: advanced-cache.php is not ...
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2answers
670 views

NextGen Gallery template cache

I've implemented a custom Isotope template for the NextGen Gallery plugin, and I've made changes and bug fixes to the template, but when I refresh the page the template changes have not taken effect. ...
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2answers
56 views

WebHostingBuzz cache statement

WordPress Usage & Modules: We do not allow any WordPress caching modules since they continually cause server overload problems and are only allowed on VPS or dedicated hosting. ...
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2answers
161 views

Is the wp_enqueue method efficient?

I had a quick question regarding how you are supposed to load in scripts with Wordpress. I am developing a theme and I know that the best way to do this is to use the ...
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2answers
61 views

Is it duplicated if I cache an object that uses data from postmeta?

I have an object that saves its data in postmeta. When there is a post_id, the object class will query data by using get_post_cutom(); After get data, it starts to do its jobs, the end result is a ...
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2answers
83 views

How effective are cacheing plugins for dynamic pages?

The majority of pages of one of my sites can only be accessed by registered users. While these pages do share some common, static content (headers, etc) most of the information on the page is ...
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2answers
195 views

Transient api Caches confused

This code works for page 1 <?php $paged1 = (get_query_var('paged')) ? get_query_var('paged') : 1; $recent1 = get_transient( 'recent1' ); if ...
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2answers
4k views

How do I force Wordpress to show most recent version of images in the media library?

My workflow is sometimes the following: Delete many images from the media library at once (named for example, 01.jpg, 02.jpg, 03.jpg...). Re-upload a series of images with the same file names ...
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1answer
76 views

How can I permanently cache or “archive” a WP blog without needing future maintenance

I have a client who has an annual complete makeover of their website design and content, but they still want their old sites available to view (each with that year's respective design/CSS). Once ...
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1answer
29 views

Can Wordpress Drop-ins be given their own directory?

Drop-in files, like advanced-cache.php or object-cache.php, sit in the root of the wp-content directory. Is it possible to give drop-ins in their own subdirectory of wp-content instead? Looking at ...
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1answer
19 views

Add unique id to Preview URL

Is there an easy way to append a unique ID to the preview URL when the preview button is clicked by a user? So this: http://example.com/news/1/title/?preview=true Becomes: ...
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1answer
159 views

Where to put W3 Total Cache rewrite rules in .htaccess?

Should I put them in the following order or the order doesn't matter at all? # BEGIN W3TC Browser Cache # END W3TC Browser Cache # BEGIN W3TC Page Cache core # END W3TC Page Cache core # WordPress ...
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1answer
220 views

A bunch of unrelated wordpress using same memcached don't store correctly their datas

Before begin I've to warn the reader: watch out the d! On a single web server (CentOS 6.3) using php-5.3.3 I've a bunch of unrelated wordpress sites (3.5), each one has its own DB (Mysql5.1) so the ...
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1answer
1k views

posts_per_page doesnt work

Here is the my custom query ; <?php $Poz = new WP_Query(array( 'posts_per_page' => 3, 'orderby' => 'date', ...
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2answers
930 views

Why does my site flash white every time it changes page? [closed]

Any ideas? I've never had this problem before. Here is the site.
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1answer
541 views

Combile External JS files using W3 Total Cache

Is there any option or is it recommended to combine external JS files using W3 Total Cache plugin for wordpress. When I say exxternal JS files, I mean that I want to combine .JS files that on other ...
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1answer
156 views

Cache DB queries result

On my new site i am displaying most of the images instead of text. I show images for recently written, recently viewed, mostly viewed posts etc. I found that in 40% of cases posts are same. so i need ...
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3answers
387 views

Spam injected in w3 total cache page cache

I'm trying to fix a site which has been injected with external spam. After inspection I found out that the external content (so far just html advertising different kinds of drugs, no scripts) was in ...
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1answer
15 views

Wordpress caching issue

I've updated a page in wordpress and can see the correct result in "preview mode", but if I view the page outside of the admin interface the update does not show. I've search around and tried the ...
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1answer
31 views

Cache WordPress for offline use

Client of mine will be out in the sticks and needs to have an offline version of her WordPress site. Is there a way to cache the entire site so that it is available offline? I know I can use Xampp ...
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1answer
76 views

CSS changes not taking effect

I make changes to my style.css file but they do not take effect on the website. Style.css is located here: /wp-content/themes/academy/style.css I have made changes to it previously and the changes ...
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1answer
71 views

How long is “as long as possible” in wp_cache_set()?

The documentation for wp_cache_set() says that if you pass in 0 for $expire (which is also the default), then it is cached for "as long as possible". How long is this? What determines it? Are we ...
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1answer
27 views

Browser cache for dynamic content (list of tags)

What does WP have to offer when it comes to generating dynamic content that rarely changes? I've created a jQuery backed metabox which implements auto complete and has the option of not allowing ...
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1answer
102 views

Slow WP Site, theme.php not caching? Up to 25 second load time! [closed]

I have two WP subdirectories off of a Joomla domain. The Joomla load time is ok. However, the WPs are so so sooooo slow. The back end is slow too. I have w3 cache installed on both and I've copied the ...
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1answer
428 views

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

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 ...
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1answer
137 views

Update Custom post field by Ajax on cached site

My site cached by "wp-supper cache" plugin and "cloudflare.com" So my php function to count post views working incorrectly. I try to use ajax for it but I'm noob with JS code so I can not know where ...
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2answers
97 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"?
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1answer
150 views

Jetpack stats and caching strategy

I'm thinking about hosting a WordPress website with agressive caching/optimization strategies (like varnish, microcache, ngx_pagespeed, etc). But I still want Jetpack stats to work alright. What ...
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1answer
94 views

Cache issue with WP_Query and custom field filtering

I have three separate WP_Queries on a page. Each of them return custom post type items that have a certain checkbox checked and then display one of those randomly. The checkbox has been added using ...
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2answers
532 views

issues with object cache (memcached as backend) and wpmu when flush_all is run

Im running a rather large wpmu setup bloggersdelight.dk - from time to time, we need to reset the object cache when doing changes on the site. When we do this, things mess up. Option values from sites ...
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1answer
293 views

Cache issues with images not showing up

Images are there, but they don't always show up. Could this be a cache problem? Or Timbthumb? Here is an example: http://designportugal.net/servicos/design/ And another: ...
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1answer
121 views

How do I serve fully cached full HTML on cloudfront

I am using cloud front but want it to serve not just images and CSS but full static HTML pages that are cached locally. I am using wp super cache ... I assume it is caching the full HTML for posts ...
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1answer
82 views

Repeated nav bar queries failing to be cached

Every time a page view occurs, wordpress is sending a complex non-indexed query below. The exact same query is sent over and over and it seems that it is being passed through some "caching" code. But ...
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2answers
837 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 ...
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3answers
626 views

Disable WordPress cache programmatically on a request

How do I turn off the WP Super Cache & W3 Total Cache functionality programmatically? For instance, I neither want to make it use the cache on some requests nor cache the output of the request, do ...
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1answer
256 views

Where does WordPress default SimplePie save cache data?

Where does WordPress default SimplePie save cache data? I could only find relevant info about cache durations but not the location. SimplePie has a method called set_cache_location() but I cannot find ...
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1answer
65 views

Problem with caching, W3TC [closed]

Am using W3TC from a long time but from past few weeks am stuck, as I can't see my edits working. It was all fine in past but from a week my edits in style.css reflects back in like an hour after. ...
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1answer
156 views

Shortcode Strategy

I'm looking to insert data from another database into my posts, and thought of using shortcodes. An example post: [imdb id="123" name] was born [imdb id="123" birthday] in [imdb id="123" ...
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1answer
65 views

Cache plugin for medium traffic news blog

I have a middle-low traffic blog. Server is lite speed based. And ping values 20-25 MS for my Country ( this blog not global,just for my Country ) I want to Install a light cache plugin... Which ...
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1answer
58 views

Client cant see the Updated dynamic content

I have came across an issue... whenever I upload new content to the site.. and i send the link to the client.. He can not view the changes instead what he see is the previously updated content. Looks ...
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votes
1answer
579 views

Scheduling doesn't work due to caching?

I'm using W3 Total Cache and Nginx with Varnish, and I'm very happy with the speed. However, I noticed that when I schedule a post, the post doesn't get automatically posted when I'm a visitor. When ...
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1answer
593 views

APC fragmention woes on Apache AWS EC2 Small instance with WordPress and W3TC

Asked this question at serverfault, and got confirmation that W3TC is most likely causing the issue, but several of my more W3TC/Wordpress specific issues weren't able to be answered. Reposting ...
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1answer
1k views

How to Automatically import external images to Upload

Hi to all I would like to have a simple plugin, hook, anything that Automatically caches external images. Simple explanation: Actually I'm using this plugin: ...
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1answer
130 views

what is the cache directory for in my theme? (version control it?)

I was wondering what processes exactly use the cache directory inside my theme's directory. More specifically, I am wondering if I should add any of those files to my git repo.
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votes
1answer
2k views

Warning! PHP safe mode enabled!

I just installed WP Super Cache plugin and enabled all settings which were suggested by this plugin. After doing it I am seeing a warning. Warning! PHP safe mode enabled! What is this? What should I ...
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1answer
221 views

w3 total cache - Object Caching 2165/2469 objects?

Site is: http://kremim.com WordPress 3.2.1 MS, buddypress,bbpress installed. wp_options have 333 records. But Object Caching 2165/2469 objects? Why 2000+ ? Debug: ...
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1answer
120 views

W3 Total Cache Help - How to update DNS Zone for a static domain

I am running this site: www.thetechnofreaks.com on Wordpress. Recently I came through a plugin that claims to increase the page load efficiency of my site. the plugin details can be found here: ...
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1answer
63 views

Actions to use when flushing cache (when posts are added / deleted / modified)

I'm looking for a list of action tags that are relevant when you: create a post, with any method, so basically using wp_insert_post modify a post, like changing status, title, content, terms, meta, ...