WordPress连接优化：链接加上external nofollow

发表于 2016年08月18日
WordPress

对于网站引用了太多的外部连接，权重会受影响，很多站长都比较在意这个细节，下面给出几种方案：

站外连接添加nofollow

function external_nofollow($content){
 preg_match_all('|href="(.*?)"|',$content,$matches);
 if($matches){
 foreach($matches[1] as $val){
 if( strpos($val,home_url())===false ) $content=str_replace("href=\"$val\"", "href=\"$val\" rel=\"external nofollow\" ",$content);
 }
 }
 return $content;
}
add_filter('the_content','external_nofollow',999);

function external_nofollow($content){

preg_match_all('|href="(.*?)"|',$content,$matches);

if($matches){

foreach($matches[1] as $val){

if( strpos($val,home_url())===false ) $content=str_replace("href=\"$val\"", "href=\"$val\" rel=\"external nofollow\" ",$content);

}

return $content;

}

add_filter('the_content','external_nofollow',999);

分类添加nofollow

function crunchify_nofollow_cat($text) {
global $post;
        if( in_category(1) ) { // YOUR CATEGORY ID HERE 可变
                $text = stripslashes(wp_rel_nofollow($text));
        }
        return $text;
}
add_filter('the_content', 'crunchify_nofollow_cat');

function crunchify_nofollow_cat($text) {

global $post;

if( in_category(1) ) { // YOUR CATEGORY ID HERE 可变

$text = stripslashes(wp_rel_nofollow($text));

}

return $text;

}

add_filter('the_content', 'crunchify_nofollow_cat');

标签添加nofollow

function nofollow_cat_posts($text) {
global $post;
        if( has_tag(1) ) { // SET TAG ID HERE 可变
                $text = stripslashes(wp_rel_nofollow($text));
        }
        return $text;
}
add_filter('the_content', 'nofollow_cat_posts');