Curated copy-paste code snippets, interactive developer tools, and zero-bloat performance guides.
XML-RPC pingbacks are frequently exploited in large-scale DDoS amplification and brute-force attacks. This snippet disables dangerous pingback methods without breaking Jetpack or the official WordPress mobile app.
WordPress loads unnecessary JavaScript and CSS styles on every page load to support legacy browser emojis. This snippet completely removes wp-emoji scripts, styles, and DNS prefetch requests to reduce HTTP requests.
Enforce a storewide minimum checkout threshold in WooCommerce. If a customer attempts to checkout with a cart value below the threshold, an error notice is triggered preventing checkout.
When posts or custom post types are deleted without proper cleanup hooks, their metadata remains in wp_postmeta. This query cleans orphaned post meta.
Expired transients often accumulate into tens of thousands of unused rows in wp_options, inflating database backup size and slowing autoloaded options. This SQL query safely purges expired transients.
Save time when managing large blogs by previewing featured image thumbnails directly in the WordPress posts list table.
White-label the WordPress administration area for client sites with custom branding and support links in the dashboard footer.
Eliminate render-blocking CSS on classic pages, landing pages, or lightweight custom templates by dequeuing default Gutenberg block stylesheets.
The WordPress Heartbeat API sends frequent AJAX requests (/wp-admin/admin-ajax.php) every 15-60 seconds, which can overload CPU on shared and VPS hosting. This snippet disables heartbeat globally except while drafting posts.
Prevent automated vulnerability scanners from identifying your exact WordPress core version across HTML meta tags, scripts, and RSS feeds.
Attackers and botnets use URL parameters like /?author=1 to reveal administrative usernames. This snippet intercepts query parameters and safely redirects or returns a 404 header.
By default, WooCommerce continues to display Flat Rate and Local Pickup alongside Free Shipping. This filter hides paid shipping rates once a customer qualifies for Free Shipping.
When selling digital products, booking services, or individual course memberships, you often want only one item in the WooCommerce cart at any time. This hook clears the existing cart before adding a new product.
Important Technical Note: In PHP, upload_max_filesize and post_max_size are PHP_INI_PERDIR directives. Calling @ini_set() inside functions.php or wp-config.php is ineffective on modern FastCGI/PHP-FPM servers because the HTTP payload is evaluated before theme execution starts. To reliably increase your WordPress upload file size, place these directives in your .htaccess (Apache/LiteSpeed) or .user.ini (Nginx/PHP-FPM), and adjust WP_MEMORY_LIMIT in…
Brand your WordPress client websites by replacing the default WordPress logo on wp-login.php and redirecting the logo URL to your homepage.
By default, WordPress blocks SVG uploads due to potential XML vulnerability risks. This lightweight function safely whitelists SVG MIME types for administrators.
XML-RPC in WordPress is frequently targeted by brute-force attacks and DDoS amplification vulnerabilities. If you are not using the WordPress mobile app or Jetpack, disabling XML-RPC significantly improves site security and reduces server load.