register_post_type needs to be called on every page load– init seems to be fine and is the hook used in the Codex sample. The post data itself is kept in the database, but the registration tells the PHP what to do with it. Most of the post type information– the $labels, the $args— are not … Read more
ACF has finegrained filters for fields when they get loaded. add_action( ‘wp_enqueue_scripts’, ‘register_my_scripts’, 5 ); function register_my_scripts() { wp_register_script( ‘my-script’, ‘path-to/my-script.js’, array(), ‘version’, true ); } add_filter(‘acf/load_field/name=my_field_name’, ‘load_field_my_field_name’); function load_field_my_field_name( $field ) { wp_enqueue_script( ‘my-script’ ); return $field; } Normally all scripts should be enqueued in wp_enqueue_scripts hook. So you should make sure your script … Read more
It’s not likely an unused site is using mach resources except for harddrive space. There may be something left in memory but on a typical server thats doubtfull. google bots trigger the site exactly the same as a regular user except it doesnt load unnessasary files like javascript, css or images (except maybe for image … Read more
It’s a very loaded question, I’ll try my best here, keep in mind it’s 4am, so I’m just giving you highlights, not detailed explanations. Linux I’m assuming you’re using a recent version of Ubuntu Change the default SSH port from 22, to something else (/etc/ssh/sshd_config). Either enable AllowGroups or AllowUser in the sshd_config, Install fail2ban … Read more
I don’t think there is any considerably advanced CMS that you can throw high traffic at and expect it to handle it without any configuration effort. Can WP be used for high-traffic site? Of course and it is being used as such by many sites. But it should be WP on decent hosting and well-configured … Read more
The difference would be negligible. The the_content filter is fired regardless of whether you use it or not because WordPress uses it for other things. So the only thing that would be performance related would be the complexity of your filter function. But since you’d probably be doing the same level of complexity in a … Read more
I work with several large WordPress sites, news sites specifically, that have thousands of posts and thousands of visitors (300k/day). With the stuff below, and a well coded theme, with well written queries, we’re loading in 2.5s with 7 ad blocks from AdSense and RevContent. Do you have a CDN? I highly recommend a CDN … Read more
Michael Adams, Quantum Bug Creator at Automattic once said: “Revisions are stored in the posts table. I don’t yet know what kind of impact that will have on post queries. We’re going to turn the switch to “on” on WordPress.com sometime soonish and we’ll have a better idea about what kind of damage, if any, … Read more
There are a couple of reasons why this generates more queries than you expect. First, ACF stores fields as two distinct pieces of data – one part contains info about the field, what settings you selected, how to format output, etc., and the other part contains the actual value assigned to that field. So right … Read more
General speaking yes for read-only applications (until MySQL 5.7, it’s deprecated since version 8.0), it enables equal SELECTs to return data extremely fast if identical calls are already stored in cache. You should consider that: Only exact same clauses can benefit from the cache engine (no spaces, no comments, no actual differences in WHERE expressions); … Read more