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10 Hidden WordPress Settings You Never Used Before (and How They Boost Performance)

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๐Ÿ“ฐ Introduction

Most WordPress users install plugins to improve their website, but few know that WordPress itself hides several powerful settings that can make your site faster, safer, and easier to manage โ€” without any plugin!
In this post, weโ€™ll explore 10 hidden WordPress settings you probably never used before, and show how to unlock their full potential.


โš™๏ธ 1. Enable Automatic Image Compression

By default, WordPress compresses images to 82% quality โ€” but you can customize it.
Add this small line in your functions.php:

add_filter('jpeg_quality', function($arg){return 75;});

โœ… Benefit: Faster page load time without visible loss in quality.


๐Ÿ”’ 2. Disable File Editing from Dashboard

Hackers can modify your plugin files if file editing is enabled.
Go to your wp-config.php and add:

define('DISALLOW_FILE_EDIT', true);

โœ… Benefit: Extra layer of security.


๐Ÿงญ 3. Change WordPress Auto-Save Interval

If you write long posts, WordPress auto-saves too frequently.
Control it via:

define('AUTOSAVE_INTERVAL', 180); // every 3 minutes

โœ… Benefit: Reduces server load.


๐Ÿงฑ 4. Limit Post Revisions

Too many revisions can slow your database.

define('WP_POST_REVISIONS', 5);

โœ… Benefit: Keeps database light and fast.


๐Ÿ•ต๏ธโ€โ™‚๏ธ 5. Disable WordPress Emojis

Emojis load external scripts that slow down pages.

add_action('init', function(){
remove_action('wp_head', 'print_emoji_detection_script', 7);
remove_action('wp_print_styles', 'print_emoji_styles');
});

โœ… Benefit: Improves page performance.


๐Ÿง  6. Change WordPress Login URL

Most bots target /wp-login.php. Use a plugin like WPS Hide Login or change manually.
โœ… Benefit: Reduces brute-force attacks.


๐Ÿ“Š 7. Optimize Heartbeat API

The WordPress Heartbeat API can consume resources unnecessarily.

add_filter('heartbeat_send', '__return_false');

โœ… Benefit: Less CPU usage on shared hosting.


๐ŸŒ 8. Set Custom Excerpt Length

function custom_excerpt_length($length){return 25;}
add_filter('excerpt_length', 'custom_excerpt_length');

โœ… Benefit: Cleaner blog layouts.


๐Ÿ“ฆ 9. Remove Query Strings from Static Resources

function remove_query_strings($src){
return remove_query_arg('ver', $src);
}
add_filter('script_loader_src', 'remove_query_strings', 15, 1);
add_filter('style_loader_src', 'remove_query_strings', 15, 1);

โœ… Benefit: Better caching and SEO score.


๐Ÿงน 10. Disable Pingbacks & Trackbacks

From Settings โ†’ Discussion โ†’ Uncheck Allow link notifications
โœ… Benefit: Prevents spam and unnecessary requests.


๐Ÿ”š Conclusion

By activating these 10 hidden settings, your WordPress site can become faster, safer, and lighter โ€” without installing a single plugin.
Next time you think of adding a new optimization plugin, check if WordPress already offers the same feature under the hood.

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