No, de-activated plugins cannot slow down the WordPress site. Wordpress only loads the active plugins and ignores everything else.

Following are main files which used in wordpress index.php :- for index page. search.php :- For display the search result page. single.php :- for single post page. page.php...

$wpdb->query("select * from $wpdb->posts where ID>10 ");

wp_nav_menu() :- Displays a navigation menu. is_page() :- to check if this is page OR NOT, will return boolean value. get_the_excerpt() :- Copy the excerpt of the post into a...

echo get_post_meta($post->ID, 'keyName', true);

there are 11 tables in WordPress which are used and automatically installed when WordPress is installed. wp_commentmeta wp_comments wp_links wp_options wp_postmeta wp_pos...

There are two ways to do so: 1. GO to Admin panel -->> On the left side find the menu name USERS -->> CLICK ON YOUR PROFILE MENU. Here you can see the Checkbox option to the...

If you go on the dashboard under options-discussion there is a comment “ Allow people to post a comment” try unchecking the comment.

Install security plug-ins like WP securityRe-install the latest version of WordPressChange password and user-ids for all your usersCheck your themes and plug-ins are up to date

Install security plug-ins like WP security Change password of super admin OR other admin Add security level checks at server level like folder/file permission.