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@paulcollett
Last active December 19, 2023 04:42
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Remove Yoast HTML Comments “This site is optimized with the Yoast WordPress SEO plugin”
// For Yoast SEO Plugin Version: 14.1+ add to your Wordpress Theme's functions.php...
// Remove All Yoast HTML Comments
// https://gist.github.com/paulcollett/4c81c4f6eb85334ba076
// Credit @devendrabhandari (https://gist.github.com/paulcollett/4c81c4f6eb85334ba076#gistcomment-3303423)
add_filter( 'wpseo_debug_markers', '__return_false' );
// For Yoast SEO Plugin Version: < 14.1 add to your Wordpress Theme's functions.php...
// Remove All Yoast HTML Comments
// https://gist.github.com/paulcollett/4c81c4f6eb85334ba076
// Credit @maxyudin (https://gist.github.com/paulcollett/4c81c4f6eb85334ba076#gistcomment-2937964)
add_action('wp_head',function() { ob_start(function($o) {
return preg_replace('/\n?<.*?yoast seo plugin.*?>/mi','',$o);
}); },~PHP_INT_MAX);
@DennysDionigi
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DennysDionigi commented Aug 21, 2019

Hi all, I found this function which seems lighter than a "heavy" replace:

/**
 * Disable Yoast's Mark and its version.
 */
add_action( 'template_redirect', function () {
     if ( ! class_exists( 'WPSEO_Frontend' ) ) {
        return;
    }
    $instance = WPSEO_Frontend::get_instance();
     // make sure, future version of the plugin does not break our site.
    if ( ! method_exists( $instance, 'debug_love') ) {
        return ;
    }
    // ok, let us remove the love letter.
     remove_action( 'wpseo_head', array( $instance, 'debug_love' ), 2 );
}, 9999 );

Also please note that as said by @maxyudin , the previous code breaks the script tag, adding the printed code in the body.

@kangmis77
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Looks good.. thanks dude... I'll try... http://ideunik.com/

@jeremypetrequin
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jeremypetrequin commented Jan 2, 2020

The method seems to be called "debug_mark" in the latest version of Yoast,
So the adapted code of @DennysDionigi working for me on the last version is

/**
 * Disable Yoast's Mark and its version.
 */
add_action( 'template_redirect', function () {
	if ( ! class_exists( '\WPSEO_Frontend' ) ) {
		return;
	}
	$instance = \WPSEO_Frontend::get_instance();
	// make sure, future version of the plugin does not break our site.
	if ( ! method_exists( $instance, 'debug_mark') ) {
		return ;
	}
	// ok, let us remove the love letter.
	remove_action( 'wpseo_head', [ $instance, 'debug_mark' ], 2 );
}, 9999 );

@Ridys
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Ridys commented Feb 27, 2020

Thanks

@devendrabhandari
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devendrabhandari commented May 14, 2020

Now use the below code to remove Yoast HTML Comments from version 14.1
Yoast SEO Plugin Version: 14.1

add_filter( 'wpseo_debug_markers', '__return_false' );

@mohsinr
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mohsinr commented Jun 19, 2020

Now use the below code to remove Yoast HTML Comments from version 14.1
Yoast SEO Plugin Version: 14.1

add_filter( 'wpseo_debug_markers', '__return_false' );

Thank you! It works!

@f0rtisyy2019
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Now use the below code to remove Yoast HTML Comments from version 14.1
Yoast SEO Plugin Version: 14.1
add_filter( 'wpseo_debug_markers', '__return_false' );

Thank you! It works!

Also works for me. Thanks

@ulissse
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ulissse commented Sep 6, 2020

Hello,
It work but is it possible to get rid of all the spaces and tabulations?
Thank you.

@eduardsantamaria
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Now use the below code to remove Yoast HTML Comments from version 14.1
Yoast SEO Plugin Version: 14.1
add_filter( 'wpseo_debug_markers', '__return_false' );

Thank you! It works!

Also works for me. Thanks

Now use the below code to remove Yoast HTML Comments from version 14.1
Yoast SEO Plugin Version: 14.1

add_filter( 'wpseo_debug_markers', '__return_false' );

It Works! Thank you!

@justinrains
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Awesome! Thanks for the code. Much appreciated!

@jenkinstm
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Still works! Thank you.

@ikiyamay
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Still works! Thank you.

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