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How to stop WordPress generating 20 image sizes per upload
Every image you upload can spawn a dozen extra files on disk from registered image sizes you don’t need — here’s how to see what’s registered and trim it down.
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Stop admin-ajax.php from slowing down your site
Generic speed-plugin checklists tell you to block admin-ajax.php, but it’s used by the frontend too — here’s how to actually find and fix what’s hammering it.
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How to disable the WordPress REST API without breaking the block editor
The block editor runs on the REST API, so the common “add this snippet to kill the REST API” advice breaks wp-admin. Here’s the approach that actually works.
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WP-Cron isn’t a real cron — why your scheduled posts don’t publish (or publish late)
WordPress’s built-in cron only runs when someone visits your site, which is why low-traffic sites see scheduled posts publish late. Here’s how to switch to a real system cron.
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Fix: “Briefly unavailable for scheduled maintenance” stuck in WordPress
Why WordPress gets stuck showing the maintenance screen after an update, what the .maintenance file actually does, and how to remove it safely without breaking anything.