I’m currently using WordPress Transient Caching when querying images I’ve uploaded and tagged. Using Transient Caching has really sped up these queries once they are cached, but unfortunately, once the cached query expires it is only cached again when someone loads that page. Is it possible to preload/prime transient caches so users don’t get stuck … Read more
Lets say you are doing an update_option() and because of some temporary network glitches updating the value in Redis/Memcached fails and you end up with a stale cache for a specific option key. The core APIs does not seem to care about the response from wp_cache_set() and they move forward with the rest of the … Read more
I want to have a FAQ page on my site which has a search box. As the user types in their question, a field below the search box is populated with FAQ answers with similar titles. The exact same functionality as the StackExchange ‘Questions with similar titles’ feature: Questions with similar titles 4 Open Source … Read more
Is there an easy way to delete all transient caches? A plugin maybe? Or like in drupal “drush cc all”? 3 Answers 3 Not tested, but if you need a quick and dirty way, you could put a script like this in your WordPress folder and call it each time: define( ‘WP_USE_THEMES’, false ); require(‘wp-blog-header.php’); … Read more
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 maintenance downtime or capacity problems. Please try again later. Error: 503 Service Temporarily Unavailable I have turned almost all plugins off … Read more
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 password once. The problem: I need the session to time out after an hour. I have tried using this … Read more
Is it possible to make a WordPress deployment read-only? For a website that won’t be updated, I’d like to make it read-only/static, so the archive is there but nobody can post, so I don’t have to deal with breaches and updates? 2 Answers 2 Assuming you have shell access, or access to any Linux/Unix box, … Read more
I’m using the WP Super Cache plugin and inside my theme I have code that executes differently if the site is viewed on a mobile device (iOS, Android) than a desktop browser. How do make WP Super Cache create a separate cache for each, most likely via the user agent? Right now, I have use … Read more
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 whichever stylesheet is appropriate. However, I just realised that this will lead to problems when I switch on caching (either using WP Supercache or W3 Total … Read more
I have a multisite blog that will soon have an Akamai caching service sitting in front of it, serving cached content to visitors (15 minute TTL). I want to configure Akamai to exclude any important URLs that should never be cached (i.e., don’t want to serve cached login/admin pages). Is there a compilation, or general … Read more