├── README.md
└── functions.php


/README.md:
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1 | Blog Post - https://geekflare.com/wordpress-performance-optimization-without-plugin
2 | 


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/functions.php:
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 1 | /*Update following in your WordPress theme's functions.php file */
 2 | 
 3 | // Remove Query String from Static Resources
 4 | function remove_cssjs_ver( $src ) {
 5 | if( strpos( $src, '?ver=' ) )
 6 |  $src = remove_query_arg( 'ver', $src );
 7 | return $src;
 8 | }
 9 | add_filter( 'style_loader_src', 'remove_cssjs_ver', 10, 2 );
10 | add_filter( 'script_loader_src', 'remove_cssjs_ver', 10, 2 );
11 | 
12 | // Remove Emojis
13 | remove_action('wp_head', 'print_emoji_detection_script', 7);
14 | remove_action('wp_print_styles', 'print_emoji_styles');
15 | remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
16 | remove_action( 'admin_print_styles', 'print_emoji_styles' );
17 | 
18 | // Remove Shortlink
19 | remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0);
20 | 
21 | // Disable Embed
22 | function disable_embed(){
23 | wp_dequeue_script( 'wp-embed' );
24 | }
25 | add_action( 'wp_footer', 'disable_embed' );
26 | 
27 | // Disable XML-RPC
28 | add_filter('xmlrpc_enabled', '__return_false');
29 | 
30 | // Remove RSD Link
31 | remove_action( 'wp_head', 'rsd_link' ) ;
32 | 
33 | // Hide Version
34 | remove_action( 'wp_head', 'wp_generator' ) ;
35 | 
36 | // Remove WLManifest Link
37 | remove_action( 'wp_head', 'wlwmanifest_link' ) ;
38 | 
39 | // Disable JQuery Migrate
40 | function deregister_qjuery() {  
41 |     if ( !is_admin() ) {
42 |         wp_deregister_script('jquery');
43 |     }
44 | }  
45 | add_action('wp_enqueue_scripts', 'deregister_qjuery'); 
46 | 
47 | // Disable Self Pingback
48 | function disable_pingback( &$links ) {
49 |   foreach ( $links as $l => $link )
50 |         if ( 0 === strpos( $link, get_option( 'home' ) ) )
51 |             unset($links[$l]);
52 | }
53 | 
54 | add_action( 'pre_ping', 'disable_pingback' );
55 | 
56 | // Disable Heartbeat
57 | add_action( 'init', 'stop_heartbeat', 1 );
58 | function stop_heartbeat() {
59 | wp_deregister_script('heartbeat');
60 | }
61 | 
62 | // Disable Dashicons in Front-end
63 | function wpdocs_dequeue_dashicon() {
64 | 	if (current_user_can( 'update_core' )) {
65 | 	    return;
66 | 	}
67 | 	wp_deregister_style('dashicons');
68 | }
69 | add_action( 'wp_enqueue_scripts', 'wpdocs_dequeue_dashicon' );
70 | 
71 | // Disable Contact Form 7 CSS/JS on Every Page
72 | add_filter( 'wpcf7_load_js', '__return_false' );
73 | add_filter( 'wpcf7_load_css', '__return_false' );
74 | 
75 | 


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