dipakcg

This is the technique I use to defer Youtube videos, when optimising the performance of WordPress site.

(1) Replace Youtube iFrame embed code with the below one:
----------------------

<div class="dcg-responsive-container">
  <iframe class="dcg-responsive-iframe" src="" data-src="https://www.youtube.com/watch?v=nEFZLFyZNcE?rel=0" frameborder="0" allowfullscreen style="border:0"></iframe>
</div>

(2) Add the following CSS element (stylesheet element that will make Youtube iFrame Responsive) (style.css?):

dipakcg

<?php
/*
In theme's footer, call the locally hosted script file.
*/
?>

<!-- <script type="text/javascript" src="https://static1.clutch.co/api/widget.js" async></script> -->
<script type="text/javascript" src="<?php echo LOCAL_SCRIPTS_UPDLOAD_URL . '/dcg_clutch_widget_local.js'; ?>"></script>

<!-- <script type="text/javascript" src="https://secure.tula9mari.com/js/151014.js" ></script> -->

dipakcg

<?php 
if(
  strpos( $_SERVER['HTTP_REFERER'], 'wp-admin' ) === false &&
  strpos( $_SERVER['REQUEST_URI'], 'admin-ajax.php' ) !== false
) {
  header( 'Cache-Control: max-age=30000, must-revalidate' );
  header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', strtotime( '+5000 minutes' ) ) . ' GMT' );
  header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s', strtotime( '-5000 minutes' ) ) . ' GMT' );
  header( $_SERVER["SERVER_PROTOCOL"]." 404 Not Found" );
  die;

WganMe

    yum install ea4-experimental
    yum install ea-apache24-mod_pagespeed

dipakcg

/* ******************
When considering performance speed, you may want to keep JS scripts organized beneath your overall page HTML.
This snippet allows most of the DOM to finish loading before running any dynamic scripts.
****************** */

function dcg_move_scripts_to_footer() {
    if( !is_admin() ) {
        remove_action('wp_head', 'wp_print_scripts');
        remove_action('wp_head', 'wp_print_head_scripts', 9);
        remove_action('wp_head', 'wp_enqueue_scripts', 1);

vovafeldman

<?php
	/*
	Plugin Name:	My Add-on
	Version:		1.0.0
	Author:			Vova Feldman
	Author URI:		http://freemius.com
	License:		GPL2
	*/
	
	// Exit if accessed directly

MikeNGarrett

<?php 
// PHP memory limit for this site
define( 'WP_MEMORY_LIMIT', '128M' );
define( 'WP_MAX_MEMORY_LIMIT', '256M' ); // Increase admin-side memory limit.

// Database
define( 'WP_ALLOW_REPAIR', true ); // Allow WordPress to automatically repair your database.
define( 'DO_NOT_UPGRADE_GLOBAL_TABLES', true ); // Don't make database upgrades on global tables (like users)

// Explicitely setting url

leowebguy

<?php

/******
Parallelize downloads across hostnames for WordPress. 
Useful to boost static resources load speed on websites.
Recommended by GTmetrix, Pingdom, Google Speed Insights, and others.
See full post > https://medium.com/p/32e9dc2fec0c

In order to work properly, all subdomains/hostnames MUST have the same structure/path. Ex:
http://mydomain.com/wp-content/uploads/2015/11/myimage.jpg

dipakcg

<?php
/* Below code will display Google Custom Search results if no posts/results found */
/* Add the below code in theme's search.php file where you want to display results from Google */
$query = get_search_query();
$query_new =str_replace(' ','%20',$query);
$url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&start=0&rsz=8&q=".$query_new;

$body = file_get_contents($url);

$json = json_decode($body);

dipakcg

/* Put this code in current theme’s functions.php */
/* Replace plugin-directory/plugin-file.php with plugin’s directory and file name */

function filter_plugin_updates( $value ) {
    unset( $value->response['plugin-directory/plugin-file.php'] );
    return $value;
}
add_filter( 'site_transient_update_plugins', 'filter_plugin_updates' );