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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4
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1answer
822 views

Proper hook for W3TC defines, or dynamically disable w3 total cache

I have a site that uses a shopping cart plugin (Shopp), a plugin I wrote, and W3 Total Cache. In my plugin, I'd like to make sure that W3 Total Cache does not serve any cached pages if the user has ...
3
votes
1answer
80 views

W3 Total Cache plugin integration

I am working on a plugin (widget) that is using some transients that are updated from time to time. That said, when these transients are updated, I think I will need to flush the cache to display the ...
1
vote
1answer
284 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 ...
1
vote
1answer
234 views

w3 total cache and sitemap.xml

I have been installing lately w3 total cache on my wordpress site and today webmaster tools has been mailing an error by sitemap.xml crawling. Sitemap ist HTML. Is anybody experienced this issue with ...
0
votes
1answer
31 views

WordPress aggressively caching CSS

I’m absolutely fed up at this stage. I just activated a new theme on my WordPress site. I activated it at about 7pm GMT and since then I’ve been trying to change the style. I’ve updated the CSS (I’m ...
0
votes
1answer
22 views

Browser Cache causes 'Orderby=rand' to return the same posts

I have a code that redirects users to a random post whenever they visit the homepage: if (have_posts()) { query_posts('orderby=rand'); while (have_posts()) { the_post(); ...
0
votes
1answer
146 views

Failing to open advanced-cache.php which is breaking Media Library

On my WordPress install, which is 3.8 and has all plugins updated, it is using Magic Fields 2 and Hypercache amongst other plugins. I can't insert images into posts because when I upload, it gives me ...
0
votes
1answer
23 views

Page updates appear in Preview but not live version?

I have made some changes to a blog page and excluded some categories. However, whenever I view the blog online the excluded posts still appear. But when I got to the blog page and click 'preview' the ...
0
votes
1answer
26 views

How to enable Zend Optimiser+ with Batcache

I am using Batcache with APC Object Cache Backend so far. A lot of posts on internet claiming that using Zend Optimizer instead of APC would reduce CPU and memory usage. I could enable Zend ...
0
votes
1answer
84 views

How Can I Safely Remove WP-Super Cache without messing my site up?

So apparently some people cannot view my site because they said it only loads the sidebar. This only happens to some people and it only started happening after I installed the w3 super cache. I've ...
0
votes
1answer
55 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 ...
1
vote
0answers
42 views

Cache issues with redis and nginx

I have a problem with the rewrite rules in my nginx config file. I am running wordpress with nginx and redis to cache the site. I can get the redis to cache all pages not a problem, but as I am ...
1
vote
0answers
29 views

Strange caching behaviour

I changed options in my theme (style settings, to keep it simple just say switched color from blue to red) and it seems nothing happened. After some trial and error I figured out that when I am logged ...
1
vote
0answers
64 views

Index page and random posts needs a forced refresh in order to show new content

I have this weird problem with both on desktop and mobile, which requires a manual refresh in order for the index-page to show new posts. It also appears as if the user is not logged in. Basically, I ...
1
vote
0answers
57 views

Transients and WP Super Cache?

Is it worth using Transients when running WP Super Cache? We have a website that get's updated 20 times a day with new post, so I set a lot transients for queries that don't reflect those updates. My ...
1
vote
0answers
198 views

After having installed APC Object Cache Backend transients stopped working

My understanding is that once you enable the persistent object cache, your transients are no longer stored in wp_options but in the cache. Once I installed Mark Jaquith's APC Object Cache Backend, ...
1
vote
0answers
32 views

Caching RSS plugin data

I'm developing plugin and I need it's data to be cached, let's assume that it's large RSS feed grabber. Basically data of one RSS feed is about 100 lines of parsed HTML code (about 2KB). On one page ...
1
vote
0answers
265 views

WP-Super-Cache - generate cache programmatically

I wonder if there is possibility to generate WP-Super-Cache programmatically after the cache is being purged ( after I have published a new post ). I thought of writing some kind of crawler that will ...
0
votes
0answers
34 views

Wordpress PHP 5.5 and OPcache

I have tried to run on my Apache 2.4 and PHP 5.5 OPcache. My admins turned it on for me but the site was not faster - it was slower. Is there a how-to somewhere or a code snipet needed in WordPress ...
0
votes
0answers
11 views

Updating WordPress or plugins causes site issues (due to API, I think)

I have a problem with all of the sites I host on my server. Whenever someone updates WordPress of plugins, I manually have to restart Apache to get things to work properly. Should the update process ...
0
votes
0answers
40 views

Set Session Time Limit for Password Protected Posts

I have made a series of posts and pages password protected on my website using the built-in Visibility setting. They all use the same password, so the user can view all of them after entering the ...
0
votes
0answers
17 views

Is MySQL query_cache useful for WordPress?

Starting from 5.6, if you use InnoDB as the default engine and query_cache is now officially disabled. We've a quite moderate traffic wordpress site and experience a major downtime when we upgraded ...
0
votes
0answers
27 views

Post not showing up sometimes on website

I have a weird problem. A particular post is not showing up on my website sometimes. So If I clear cache then it shows up. It is happening only to one particular post. I am not able to figure out what ...
0
votes
0answers
15 views

How to cancel a custom post type query based on existing cache file

Is there a proper way to greatly restrict the query (or remove it altogether) for a custom post type type-single.php file? Simply stated, for reasons of speed speed speed I've cached all relevant ...
0
votes
0answers
18 views

Should I use transients for these API call results?

I am consuming an API that gives me a list of people and their profiles. My initial idea was working perfectly fine when it's just the list of people because I was just saving the ids and names using ...
0
votes
0answers
34 views

Why does my css file keep caching on wp-multisite?

I am quite a newbie in web design and I hope someone can solve this problem for me, I have also tried wordpress forum but can't find the answer. I have a multisite (sub domain) with a strange caching ...
0
votes
0answers
39 views

Splash pages on a high traffic site

Could use some advice here. We have a fairly high traffic site web site using WordPress. Currently we have two VPS servers managing the site, one that holds WP, one that holds MySQL. The WP servers ...
0
votes
0answers
40 views

White screen of death WP multisite memcache

We have a WordPress multisite running 3 blogs and have had http://pecl.php.net/package/memcached installed by our hosts. We have tried the Memcache Object Cache plugin, we'll refer to it as MOC from ...
0
votes
0answers
125 views

Wordpress Varnish Age=0 or Not Caching (Cookies?)

I'm using Wordpress 3.8.1 and Varnish 3.0.5. I'm sure the Varnish is not caching, because of the VCL nightmare. And i also don't know where is the very standard / correct VCL for Wordpress. My ...
0
votes
0answers
38 views

How to total cache a specific PHP file?

How do I cache specific file in WordPress? I have a file in a theme in WordPress and W3 Total cache. The file has a .php extension and is loading dynamic CSS from database. It takes too much time to ...
0
votes
0answers
42 views

My website resets when accessing the index page

So my wordpress theme and website is on a stage server, since it's under production. And this issue happens once in a while. Basically, if I log in as a user, and when I enter the index page, the ...
0
votes
0answers
64 views

Nginx + W3 Total Cache not working

I have a Ubuntu 12.10 x64 server running Nginx + MySQL, i've installed everything and my wordpress site is perfect. But, at the moment i installed W3 Total Cache, i got an error from Minify which ...
0
votes
0answers
11 views

Cannot change Object cache IP for Total Cache plugin

I am using Total Cache with Memcached. And right now it is setup to connect to 127.0.0.1. But I want to change the IP. But it's not letting me. When I change it and save it, it reverts to 127.0.0.1. ...
0
votes
0answers
23 views

Major cache but only on wordpress site

I have disabled all caching plugins, and i have cleared my browser cache, removed my temp browser files - how come i still not seeing my changes going trough on my wordpress page? I wait 20min they ...
0
votes
0answers
31 views

Wordpress Cache not working with some ajax calls

I need to install a plugin for caching my wordpress/buddypress pages or at least add define('WP_CACHE', true); to wp-config.php but when I do this, the button "join this group" that uses Ajax calls ...
0
votes
0answers
93 views

403 forbidden issue in wordpress

i have corner advertisement plugin in my wordpress website, this plugin used to convert given image into swf file and display it in any one of corner with peel effect. this plugin only not working in ...
0
votes
0answers
46 views

How to cache WordPress posts without using plugins

In a normal PHP page, I can use the following code to save the current PHP page: ob_start(); // write content echo '<h1>Hello world to cache</h1>'; $content = ob_get_contents(); ...
0
votes
0answers
114 views

Nonces and Cache

It's clear that form submissions and AJAX requests, especially sensible ones, need "nonces" to avoid certain exploits. However, with heavy use of caching systems it becomes harder to generate them ...
0
votes
0answers
94 views

Does w3 total cache cache widgets?

I wish to know whether using w3 total cache also caches widgets on the sidebar? I have a recent activity widget on the sidebar that displays live activity on the site like user joining, sharing etc. ...
0
votes
0answers
116 views

W3 Total Cache Minify Problem - Disabled Minify, but Problem Persists

I disabled Minify months ago because the problem would not get fixed, version after version of W3TC. About month ago, I re-enabled it and the problem persisted. So i disabled minify, but now I am ...
0
votes
0answers
24 views

Image is accessed twice with and without timestamp?

I am using w3total cache(0.9.2.11) and each image is accessed twice with and without timestamp ie yellow-folder-450-253.jpg?timestamp=1380777548041 and yellow-folder-450-253.jpg How can I remove the ...
0
votes
0answers
13 views

Image not appearing when I update in a sidebar widget

Is there a cache or something to empty in wordpress when I make updates? On this site: http://richardclunan.com/ in the sidebar (or down the bottom if you're on a small screen) -- there's a widget ...
0
votes
0answers
87 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 ...
0
votes
0answers
59 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 ...
0
votes
0answers
184 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 ...
0
votes
0answers
55 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 ...
0
votes
0answers
19 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!
0
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0answers
69 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! ...
0
votes
0answers
153 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 ...
0
votes
0answers
48 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 ...