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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81 views

Comment Submission Timeout - Varnish / Cloudflare

Curious to see if anyone has encountered this before - when a comment is submitted by a non-admin user on a WordPress 3.6 site (standard comments setup, no plugins), the comment is submitted (hits the ...
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1answer
4k views

How to clear the cache?

I have made changes in my CSS, but it doesn't work. I know it's because of caching from admin panel. How to clear cache of my WP admin. Is there any method to clear the cache?
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46 views

What's causing 'headers already sent' in minified javascript file with WP Total Cache 3

I'm adding WP Total Cache to my site but whenever I enable minification I get the following message in the minified javasctipt file: <br /> <b>Warning</b>: Cannot modify header ...
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0answers
128 views

php dynamic function when using wp super cache

I'd like to start using wp-super-cache on my website to improve page load times, but I would also like to keep at least one of my dynamic functions working. Basically when ever a user visits a single ...
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0answers
52 views

Best practice regarding reducing queries, optimize page load-time and reuse common data

I’m currently working on a presentation site for a company. The site itself is not very complex in its code but they have a high demand for being able to customize a lot of things themselves without ...
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0answers
18 views

Cache plugin Cache all Pages by cron

Does someone know if there is a cache plugin where you can choose if you can cache all pages at once? And if possible with a cron!
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2answers
202 views

Trouble with Transient API when W3TC is activated

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 ...
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0answers
65 views

Cache all products Woocommerce

I have installed a cache program to cache my pages. Ofcource the pages has to visited before it can be cached. Is it possible to run all the product pages at night and how? I hope someone has a idea! ...
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0answers
135 views

how to make fragment cache using xcache opcode and w3 total cache plugin?

i have a Wordpress blog with xcache opcode and w3 total cache plugin installed ... everything is working well Except i cannot make fragment cache when my page cache method is xcache opcode, while i ...
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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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0answers
44 views

cache reset button and question about deleting cache

I need to put a "delete cache button" on front-end pages. I am looking for plugins for it. any experience or recommendation for it? Can you recommend me a plug in when i create a reset button? What ...
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2answers
148 views

Which file i must edit to define a constant of WP Super Cache?

This WP Super Cache plugin doesn't let my shopcart (using shopp plugin) update when someone add or remove items. There is someone say that i must define a constant define('DONOTCACHEPAGE',1); to ...
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1answer
174 views

Correct way to perform non-cacheable DB query

Consider the code function getNow() { global $wpdb; $now = $wpdb->get_var("SELECT NOW()"); $wpdb->flush(); return $now; } I am using the above method to avoid caching ...
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1answer
104 views

How to cache a shortcode functions output?

I would like to show on my startpage the total count of posts in a WordPress Multisite. Those are nearly 7000 in 500 Blogs. So I made a function which has to go through every blog to count the posts. ...
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2answers
98 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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votes
3answers
225 views

Extremely slow Wordpress website with 6000 posts

I have a website with 6000 posts and it is extremely slow. Sometimes I get this error in my browser: Service Temporarily Unavailable The server is temporarily unable to service your request due to ...
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0answers
82 views

W3 Total Cache Plugin: How to bust browser cache?

How would I go about busting browser cache on the client site? I've noticed now that I activated browser cache, updates I push out to my server are not appearing immediately as the browser is now ...
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1answer
42 views

Can I force get_option to go back to the DB instead of cache?

Is there any way to guarantee that when I call get_option I will definitely get the value from the database and not from cache?
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1answer
92 views

Static HTML page caching for large website

I'm creating a WooCommerce store with 3000+ products (+filters). And I'm using WP super cache plugin because I want to serve pages as fast as possible. This arises problems/questions: When any post ...
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vote
1answer
728 views

Exclude certain block from caching using Fragment Caching - doesn't work

I have a one form, and I'm inserting it on page footer from a function file. I need to display a random form to each visitors and thus have a function developed to support this. However, with caching ...
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1answer
407 views

Empty Super Cache programmatically (with ACF action)

I regularly use Advanced Custom Fields to create awesome backend interfaces for my clients (as I'm sure a lot of us do…). ACF includes an Options add-on that creates one or multiple global options ...
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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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1answer
32 views

Comment Moderation and CDN Caching

I work on a site that is entirely cached by a CDN. We are about to roll out comments and will be moderating every comment before it goes live. When someone posts a comment and the page is rendered ...
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0answers
43 views

Scheduling daily refresh of posts

So here's my situation: I'm using AmazonSimpleAdmin to display products using the Amazon API. I have one product per post. The API limits 1 request per second. Meaning my front page can only have one ...
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1answer
151 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 ...
2
votes
1answer
301 views

Should I enable FastCGI on WordPress?

I am looking at my server settings and these are as follows: WebDav : active FastCGI : inactive SSL support : active Perl as Apache module : CGI-Programm PHP module : ...
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2answers
997 views

Caching issue: WooCommerce add to cart doesn't work when logged out on Chrome

Background on the problem I have a WooCommerce site hosted on WPEngine. Before going live, I contacted support with a list of pages to exclude from caching. I tested the checkout functionality, ...
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1answer
397 views

AJAX vs Fragment Caching for W3 Total Cache

I'm running a WP site with WooCommerce and I want to do some caching. I'm going to exclude the pages such as the cart/checkout for obvious reasons however there are a couple of the things on the site ...
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1answer
95 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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1answer
52 views

Cleared wp-cache and file is still not updated [closed]

I did all the following: Deleted the cache in the WP Super Cache settings Added define('DISABLE_CACHE', true); in my wp-config.php Deleted my 'cache' folder under 'wp-content' However a theme php ...
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2answers
65 views

How can I revert to showing cached pages when no database connection is available?

I don't know much about how super cache works, but I see that at the very least, I can find most of the pages of my site in the wp-content/cache/supercache folder. Now, if WordPress cannot connect to ...
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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 ...
7
votes
2answers
188 views

Limit cache size from W3 Total Cache

Is it possible to define a limit for how much space W3 Total Cache is allowed to use?
0
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1answer
236 views

Caching-Plugins and Ajax-Page-Parts

I'd love to use »W3 Total Cache« for my Wordpress page. Caching the full page is really fasten up the site. But there is a lot of current community activity and most pages including some "latest ...
4
votes
1answer
1k views

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

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 ...
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2answers
114 views

Cache previous versions of website?

I'm working on a new site for a charity. They publish a printed magazine & we would like the website to always reflect the current issue of the magazine. So far I have a front page (home page) ...
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1answer
42 views

User cannot authenticate after signup when object cache enabled

I've just upgraded to WordPress 3.5.1 and the new object-cache.php version 2.0.2 that users some new switch to blog cache functionality. We had this issue with the previous version of object cache, ...
1
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1answer
263 views

How to optimize 'select found_rows()' query? Several 'high load average' alerts daily

I have 5,000 regular posts, 6,000 posts in one post type and 2,000 posts in another post type. Needless to say, that has made the wp_posts table quite large. Not to mention, I have custom taxonomies ...
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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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1answer
221 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 ...
4
votes
1answer
229 views

how to force caching of wordpress admin

Because of using slow connection these days, I would like to force WordPress's Admin section to be cached in browser (FF,IE) so that it it takes less time to load admin pages (because in fact, most of ...
0
votes
2answers
533 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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2answers
162 views

File permissions for wp-minify plugin

I am worried on installing Wp-Minify plugin. But it needs 777 permission for the cache directory located inside wp-uploads directory. Isn't it a security issue?
0
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1answer
56 views

Keeping Objects in Memory

I have built a WordPress plugin using classes. Each project class is created for a specific user. I want to do three things: Keep the project object in memory for that user between his or her ...
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votes
1answer
250 views

WP Super Cache versus W3 Total Cache [closed]

I recently moved to a dedicated server and I've been having some problems with W3 Total Cache, server crashing, eating up a lot of RAM, back end interface becoming slow.. Everything appeared to work ...
2
votes
2answers
524 views

Using Multisite with a CDN?

I'm running Wordpress Multisite hosted with Bluehost, and only have 5 low volume sites. My site load time has been awful recently, so I've used Lazy Load, DB optimization, Smush.it, and Quick Cache to ...
0
votes
1answer
421 views

Some custom taxonomy child terms not showing in admin. Caching problem?

I have a problem with some custom taxonomy terms. I am using "Types" plugin for creating custom post types and custom taxonomies. I successfully created my postype and hierarchical taxonomy and ...
0
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1answer
295 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
353 views

How to specify expiration of cacheable resources? [closed]

I'm trying to speed up a wordpress site -- this site: http://richardclunan.net I'm following the observations here: http://gtmetrix.com/reports/richardclunan.net/9ps7Zc0j The first item says: "The ...
1
vote
3answers
353 views

server load. $_SERVER['REMOTE_ADDR'] and $_SERVER['HTTP_HOST']

while writing new code and testing it, I incorporate it into my site by testing for the remote IP address as follows; i.e., I'm the only one who will see the new code: in /functions.php: // to hide ...