I think you’re looking for the core function fetch_feed(), your new best friend! From the Codex: Retrieves an external feed and parses it. Uses the SimplePie and FeedCache functionality for retrieval and parsing and automatic caching. and fetch_feed caches results for 12 hours by default. You can modify this by modifying the time interval via … Read more
Does this happen on other browsers? It does appear that you are using aggressive caching – add a rule to prevent caching to wp-admin as it does not function well when it is cached. See if these work: *.yourdomain.com/wp-admin/* *.yourdomain.com/wp-login.php*
Caching is usually an issue with the visitor’s browser. Sometimes they won’t get a change that you have made to a page. So a Ctrl+F5 will force a reload of everything. If you have enabled caching on the back-end (usually with a plugin), then you may need to rebuild the cache for that page. If … Read more
If you use someway “compilable” WordPress theme (are they exist?!) cache-dir may contain theme-files, processed by some tools and prepared for using by httpd-server of site. As all and any artifacts, constructed from versioned data, these files can and have be excluded from versioning – everybody will be able to rebuild these files from versioned … Read more
You must be doing something really wrong and no caching solution is going to solve it. Disable plug-ins on WordPress that you don’t really need. If you use it once a month, you can enable it, use it, then disable it again. For example, I had bbPress installed but wasn’t really using it and it … Read more
A couple of thoughts for you. –Are you creating a new theme from scratch? If so, drive on. If you are modifying an existing theme, changing another’s theme style.css file can be trouble. If you are modifying an existing theme, stop what you are doing, and spend 30 (yup, 30!) minutes to learn how to … Read more
First of all, never edit a core file. As soon as WordPress is updated, you will lose your changes. The part you’ve edited already has a mechanism in place to make the change you want without editing that file. All you need to do is add a filter to wp_feed_cache_transient_lifetime to set the lifetime in … Read more
Allowed memory exhausted is generally generated because the server can’t handle the memory usage of your site, and the actual memory issue can, as Pieter Goosen mentioned, really be anything on the site. Answers to your questions: It’s not too many plugins. WordPress can handle it 🙂 Probably not. If the storage of your website … Read more
Adding custom variables(query strings) to static resources doesn’t affect caching at some of the levels you’ve listed above: WordPress plugin caching Webserver software caching PHP opcode caching MySQL caching WordPress query caching Several more etc. All of these don’t cache static resources(js, css and so on) but rather cache the output of application codes at … Read more
I do not know plugin to control FastCGI cache in nginx. However, there are a set of nginx rules to use the WP Super Cache cache directly. Let us think – what is going on when site page is accessed? nginx accepts request and sees that index.php is needed nginx starts php-fpm (what is not … Read more