以下内容都在主题的functions.php文件写入
1.移除WordPress版本信息
代码语言：javascript复制remove_action( 'wp_head', 'wp_generator' );2.移除离线编辑器开放接口
代码语言：javascript复制remove_action( 'wp_head', 'rsd_link' );
remove_action( 'wp_head', 'wlwmanifest_link' );3.移除WordPress头部加载DNS预获取
代码语言：javascript复制<link rel='dns-prefetch' href='//s.w.org' />移除代码
代码语言：javascript复制function remove_dns_prefetch( $hints, $relation_type ) {
if ( 'dns-prefetch' === $relation_type ) {
return array_diff( wp_dependencies_unique_hosts(), $hints );
}
return $hints;
}
add_filter( 'wp_resource_hints', 'remove_dns_prefetch', 10, 2 );4.移除emoji表情script和style
代码语言：javascript复制<script type="text/javascript">
window._wpemojiSettings = {"baseUrl":"https://s.w.org/images/core/emoji/2.3/72x72/","ext":".png","svgUrl":"https://s.w.org/images/core/emoji/2.3/svg/","svgExt":".svg","source":{"concatemoji":"http://wordpress.cc/wp-includes/js/wp-emoji-release.min.js?ver=4.8"}};
!function(a,b,c){function d(a){var b,c,d,e,f=String.fromCharCode;if(!k||!k.fillText)return!1;switch(k.clearRect(0,0,j.width,j.height),k.textBaseline="top",k.font="600 32px Arial",a){case"flag":return k.fillText(f(55356,56826,55356,56819),0,0),b=j.toDataURL(),k.clearRect(0,0,j.width,j.height),k.fillText(f(55356,56826,8203,55356,56819),0,0),c=j.toDataURL(),b===c&&(k.clearRect(0,0,j.width,j.height),k.fillText(f(55356,57332,56128,56423,56128,56418,56128,56421,56128,56430,56128,56423,56128,56447),0,0),b=j.toDataURL(),k.clearRect(0,0,j.width,j.height),k.fillText(f(55356,57332,8203,56128,56423,8203,56128,56418,8203,56128,56421,8203,56128,56430,8203,56128,56423,8203,56128,56447),0,0),c=j.toDataURL(),b!==c);case"emoji4":return k.fillText(f(55358,56794,8205,9794,65039),0,0),d=j.toDataURL(),k.clearRect(0,0,j.width,j.height),k.fillText(f(55358,56794,8203,9794,65039),0,0),e=j.toDataURL(),d!==e}return!1}function e(a){var c=b.createElement("script");c.src=a,c.defer=c.type="text/javascript",b.getElementsByTagName("head")[0].appendChild(c)}var f,g,h,i,j=b.createElement("canvas"),k=j.getContext&&j.getContext("2d");for(i=Array("flag","emoji4"),c.supports={everything:!0,everythingExceptFlag:!0},h=0;h<i.length;h )c.supports[i[h]]=d(i[h]),c.supports.everything=c.supports.everything&&c.supports[i[h]],"flag"!==i[h]&&(c.supports.everythingExceptFlag=c.supports.everythingExceptFlag&&c.supports[i[h]]);c.supports.everythingExceptFlag=c.supports.everythingExceptFlag&&!c.supports.flag,c.DOMReady=!1,c.readyCallback=function(){c.DOMReady=!0},c.supports.everything||(g=function(){c.readyCallback()},b.addEventListener?(b.addEventListener("DOMContentLoaded",g,!1),a.addEventListener("load",g,!1)):(a.attachEvent("onload",g),b.attachEvent("onreadystatechange",function(){"complete"===b.readyState&&c.readyCallback()})),f=c.source||{},f.concatemoji?e(f.concatemoji):f.wpemoji&&f.twemoji&&(e(f.twemoji),e(f.wpemoji)))}(window,document,window._wpemojiSettings);
</script>
<style type="text/css">
img.wp-smiley,
img.emoji {
display: inline !important;
border: none !important;
box-shadow: none !important;
height: 1em !important;
width: 1em !important;
margin: 0 .07em !important;
vertical-align: -0.1em !important;
background: none !important;
padding: 0 !important;
}
</style>移除
代码语言：javascript复制remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
remove_action( 'wp_print_styles', 'print_emoji_styles' );5.移除wp-json链接
代码语言：javascript复制<link rel='https://api.w.org/' href='http://wordpress.cc/wp-json/' />移除
代码语言：javascript复制remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );6.移除 wp-block-library-css 前端 CSS
代码语言：javascript复制function fanly_remove_block_library_css() {
wp_dequeue_style( 'wp-block-library' );
}
add_action( 'wp_enqueue_scripts', 'fanly_remove_block_library_css', 100 );7.移除前后文、第一篇文章、主页meta信息
代码语言：javascript复制remove_action( 'wp_head', 'index_rel_link' );
remove_action( 'wp_head', 'parent_post_rel_link', 10, 0 );
remove_action( 'wp_head', 'start_post_rel_link', 10, 0 );
remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0 );8.移除评论
代码语言：javascript复制remove_action( 'wp_head', 'feed_links', 2 );//文章和评论feed
remove_action( 'wp_head', 'feed_links_extra', 3 ); //分类等feed9.移除wp-json api 功能
代码语言：javascript复制[link rel='https://api.w.org/' href='http://example.com/wp-json/' /]
[link rel="alternate" type="application/json oembed" href="http://example.com/wp-json/oembed/1.0/embed?url=..." /]
[link rel="alternate" type="text/xml oembed" href="http://example.com/wp-json/oembed/1.0/embed?url=..." /]移除
代码语言：javascript复制remove_action( 'wp_head', 'rest_output_link_wp_head' );
remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
remove_action( 'template_redirect', 'rest_output_link_header', 11, 0 );10.隐藏js/css的后缀版本号
代码语言：javascript复制function wpdaxue_remove_cssjs_ver( $src ) {
if( strpos( $src, 'ver=' ) )
$src = remove_query_arg( 'ver', $src );
return $src;
}
add_filter( 'style_loader_src', 'wpdaxue_remove_cssjs_ver', 999 );
add_filter( 'script_loader_src', 'wpdaxue_remove_cssjs_ver', 999 );11.移除短链接shortlink
代码语言：javascript复制remove_action('wp_head','wp_shortlink_wp_head',10,0);移除wp-json
代码语言：javascript复制// 屏蔽 REST API
add_filter('rest_enabled', '__return_false');
add_filter('rest_jsonp_enabled', '__return_false');
// 移除头部 wp-json 标签和 HTTP header 中的 link
remove_action('wp_head', 'rest_output_link_wp_head', 10 );
remove_action('template_redirect', 'rest_output_link_header', 11 );
