Hi, Im trying to follow Google PageSpeed Insights suggestions and increase the PS Score. This is about render-blocking JavaScript in above-the-fold content Thing is I don't really know php or coding. I have a general idea and I read lot of tutorials and played with the code and I managed to fix above Google PS error. Problem is Im not sure how it will affect my site/ consequences. I edited the functions.php file of my theme. I pasted image + code Before and After I made the changes at end of the post if you want to take a look. Also list of plugins. These are my questions. 01. As I copy pasted codes, I would like to know how those changes will affect my site? What could possibly go wrong? Where are the places I should check to see if something went wrong? Will there be any conflicts? 02. Before I made changes, there were two files in the header (i.e. jquery.js AND jquery-migrate.min.js). After making changes I only see jquery.js in the footer. Should I worry about this? 03. Lets assume something went wrong. Judging by the codes I modified, are they irreversible or undoing the changes will fix it? I wanted to ask these before I make these changes in the real site. Thanks. ____________________________ BEFORE Google PSI: http://i61.tinypic.com/s77p.jpg CODE: function maya_classifieds_front_scripts() { wp_enqueue_script('jquery'); wp_enqueue_script('maya-nuslider-js',JS.'/jquery.nouislider.min.js', array('jquery'),'1.0',true); wp_enqueue_script('maya-ad-genral-js',JS.'/maya-classified-genaral-script.js', array('jquery'),'1.0',true); wp_enqueue_script('maya-view-switcher-js',JS.'/maya-adspot-popup.js', array('jquery'),'1.0',true); //custom list/grid view switcher script and popup window script wp_localize_script( 'maya-view-switcher-js', 'classfiedAjaxParam', array('themeurl'=>THEMEROOT,)); wp_enqueue_script( 'jquery-form',array('jquery'),false,true ); wp_localize_script( 'jquery-form', 'jformparam', array( 'ajaxurl'=>admin_url( 'admin-ajax.php' ),)); wp_enqueue_script('maya-genaral-js',JS.'/theme1-genaral.js', array('jquery'),'1.0',false); PHP: ____________________________ AFTER Google PSI: http://i57.tinypic.com/t0oxh2.jpg CODE: function maya_classifieds_front_scripts() { wp_deregister_script( 'jquery' ); wp_register_script( 'jquery', includes_url( '/js/jquery/jquery.js' ), false, NULL, true ); wp_enqueue_script( 'jquery' ); wp_enqueue_script('maya-nuslider-js',JS.'/jquery.nouislider.min.js', array('jquery'),'1.0',true); wp_enqueue_script('maya-ad-genral-js',JS.'/maya-classified-genaral-script.js', array('jquery'),'1.0',true); wp_enqueue_script('maya-view-switcher-js',JS.'/maya-view-switcher-popup.js', array('jquery'),'1.0',true); //custom list/grid view switcher script and popup window script wp_localize_script( 'maya-view-switcher-js', 'classfiedAjaxParam', array('themeurl'=>THEMEROOT,)); wp_enqueue_script( 'jquery-form',array('jquery'),false,true ); wp_localize_script( 'jquery-form', 'jformparam', array( 'ajaxurl'=>admin_url( 'admin-ajax.php' ),)); wp_enqueue_script('maya-genaral-js',JS.'/theme1-genaral.js', array('jquery'),'1.0',false); PHP: ____________________________ Plugin list https://wordpress.org/plugins/admin-menu-editor/ https://wordpress.org/plugins/alchemist-ajax-upload/ https://wordpress.org/plugins/contact-form-7/ https://wordpress.org/plugins/dx-delete-attached-media/ https://wordpress.org/plugins/frontend-edit-profile/ https://wordpress.org/plugins/google-sitemap-generator/ https://wordpress.org/plugins/image-cleanup/ https://wordpress.org/plugins/meta-box/ https://wordpress.org/plugins/options-framework/ https://wordpress.org/plugins/regenerate-thumbnails/ https://wordpress.org/plugins/simple-image-watermark/ https://wordpress.org/plugins/simple-share-buttons-adder/ https://wordpress.org/plugins/tinymce-advanced/ https://wordpress.org/plugins/user-role-editor/ https://wordpress.org/plugins/wc-shortcodes/ https://wordpress.org/plugins/wordpress-importer/ https://wordpress.org/plugins/wp-pagenavi/