diff --git a/src/wp-admin/edit-link-form.php b/src/wp-admin/edit-link-form.php
index d0db1df..c8a9cb2 100644
--- a/src/wp-admin/edit-link-form.php
+++ b/src/wp-admin/edit-link-form.php
@@ -64,7 +64,7 @@ get_current_screen()->add_help_tab(
 		'content' =>
 		'<p>' . __( 'You can add or edit links on this screen by entering information in each of the boxes. Only the link&#8217;s web address and name (the text you want to display on your site as the link) are required fields.' ) . '</p>' .
 		'<p>' . __( 'The boxes for link name, web address, and description have fixed positions, while the others may be repositioned using drag and drop. You can also hide boxes you don&#8217;t use in the Screen Options tab, or minimize boxes by clicking on the title bar of the box.' ) . '</p>' .
-		'<p>' . __( 'XFN stands for <a href="http://gmpg.org/xfn/">XHTML Friends Network</a>, which is optional. WordPress allows the generation of XFN attributes to show how you are related to the authors/owners of the site to which you are linking.' ) . '</p>',
+		'<p>' . __( 'XFN stands for <a href="https://gmpg.org/xfn/">XHTML Friends Network</a>, which is optional. WordPress allows the generation of XFN attributes to show how you are related to the authors/owners of the site to which you are linking.' ) . '</p>',
 	)
 );
 
diff --git a/src/wp-admin/includes/meta-boxes.php b/src/wp-admin/includes/meta-boxes.php
index a8d39ec..34144eb 100644
--- a/src/wp-admin/includes/meta-boxes.php
+++ b/src/wp-admin/includes/meta-boxes.php
@@ -1176,110 +1176,110 @@ function link_xfn_meta_box( $link ) {
 ?>
 <table class="links-table">
 	<tr>
-		<th scope="row"><label for="link_rel"><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'rel:' ); ?></label></th>
+		<th scope="row"><label for="link_rel"><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'rel:' ); ?></label></th>
 		<td><input type="text" name="link_rel" id="link_rel" value="<?php echo ( isset( $link->link_rel ) ? esc_attr( $link->link_rel ) : '' ); ?>" /></td>
 	</tr>
 	<tr>
-		<th scope="row"><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'identity' ); ?></th>
-		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'identity' ); ?></span></legend>
+		<th scope="row"><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'identity' ); ?></th>
+		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'identity' ); ?></span></legend>
 			<label for="me">
 			<input type="checkbox" name="identity" value="me" id="me" <?php xfn_check( 'identity', 'me' ); ?> />
 			<?php _e( 'another web address of mine' ); ?></label>
 		</fieldset></td>
 	</tr>
 	<tr>
-		<th scope="row"><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'friendship' ); ?></th>
-		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'friendship' ); ?></span></legend>
+		<th scope="row"><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'friendship' ); ?></th>
+		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'friendship' ); ?></span></legend>
 			<label for="contact">
-			<input class="valinp" type="radio" name="friendship" value="contact" id="contact" <?php xfn_check( 'friendship', 'contact' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'contact' ); ?>
+			<input class="valinp" type="radio" name="friendship" value="contact" id="contact" <?php xfn_check( 'friendship', 'contact' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'contact' ); ?>
 			</label>
 			<label for="acquaintance">
-			<input class="valinp" type="radio" name="friendship" value="acquaintance" id="acquaintance" <?php xfn_check( 'friendship', 'acquaintance' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'acquaintance' ); ?>
+			<input class="valinp" type="radio" name="friendship" value="acquaintance" id="acquaintance" <?php xfn_check( 'friendship', 'acquaintance' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'acquaintance' ); ?>
 			</label>
 			<label for="friend">
-			<input class="valinp" type="radio" name="friendship" value="friend" id="friend" <?php xfn_check( 'friendship', 'friend' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'friend' ); ?>
+			<input class="valinp" type="radio" name="friendship" value="friend" id="friend" <?php xfn_check( 'friendship', 'friend' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'friend' ); ?>
 			</label>
 			<label for="friendship">
-			<input name="friendship" type="radio" class="valinp" value="" id="friendship" <?php xfn_check( 'friendship' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'none' ); ?>
+			<input name="friendship" type="radio" class="valinp" value="" id="friendship" <?php xfn_check( 'friendship' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'none' ); ?>
 			</label>
 		</fieldset></td>
 	</tr>
 	<tr>
-		<th scope="row"> <?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'physical' ); ?> </th>
-		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'physical' ); ?></span></legend>
+		<th scope="row"> <?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'physical' ); ?> </th>
+		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'physical' ); ?></span></legend>
 			<label for="met">
-			<input class="valinp" type="checkbox" name="physical" value="met" id="met" <?php xfn_check( 'physical', 'met' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'met' ); ?>
+			<input class="valinp" type="checkbox" name="physical" value="met" id="met" <?php xfn_check( 'physical', 'met' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'met' ); ?>
 			</label>
 		</fieldset></td>
 	</tr>
 	<tr>
-		<th scope="row"> <?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'professional' ); ?> </th>
-		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'professional' ); ?></span></legend>
+		<th scope="row"> <?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'professional' ); ?> </th>
+		<td><fieldset><legend class="screen-reader-text"><span><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'professional' ); ?></span></legend>
 			<label for="co-worker">
-			<input class="valinp" type="checkbox" name="professional" value="co-worker" id="co-worker" <?php xfn_check( 'professional', 'co-worker' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'co-worker' ); ?>
+			<input class="valinp" type="checkbox" name="professional" value="co-worker" id="co-worker" <?php xfn_check( 'professional', 'co-worker' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'co-worker' ); ?>
 			</label>
 			<label for="colleague">
-			<input class="valinp" type="checkbox" name="professional" value="colleague" id="colleague" <?php xfn_check( 'professional', 'colleague' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'colleague' ); ?>
+			<input class="valinp" type="checkbox" name="professional" value="colleague" id="colleague" <?php xfn_check( 'professional', 'colleague' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'colleague' ); ?>
 			</label>
 		</fieldset></td>
 	</tr>
 	<tr>
-		<th scope="row"><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'geographical' ); ?></th>
-		<td><fieldset><legend class="screen-reader-text"><span> <?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'geographical' ); ?> </span></legend>
+		<th scope="row"><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'geographical' ); ?></th>
+		<td><fieldset><legend class="screen-reader-text"><span> <?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'geographical' ); ?> </span></legend>
 			<label for="co-resident">
-			<input class="valinp" type="radio" name="geographical" value="co-resident" id="co-resident" <?php xfn_check( 'geographical', 'co-resident' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'co-resident' ); ?>
+			<input class="valinp" type="radio" name="geographical" value="co-resident" id="co-resident" <?php xfn_check( 'geographical', 'co-resident' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'co-resident' ); ?>
 			</label>
 			<label for="neighbor">
-			<input class="valinp" type="radio" name="geographical" value="neighbor" id="neighbor" <?php xfn_check( 'geographical', 'neighbor' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'neighbor' ); ?>
+			<input class="valinp" type="radio" name="geographical" value="neighbor" id="neighbor" <?php xfn_check( 'geographical', 'neighbor' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'neighbor' ); ?>
 			</label>
 			<label for="geographical">
-			<input class="valinp" type="radio" name="geographical" value="" id="geographical" <?php xfn_check( 'geographical' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'none' ); ?>
+			<input class="valinp" type="radio" name="geographical" value="" id="geographical" <?php xfn_check( 'geographical' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'none' ); ?>
 			</label>
 		</fieldset></td>
 	</tr>
 	<tr>
-		<th scope="row"><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'family' ); ?></th>
-		<td><fieldset><legend class="screen-reader-text"><span> <?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'family' ); ?> </span></legend>
+		<th scope="row"><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'family' ); ?></th>
+		<td><fieldset><legend class="screen-reader-text"><span> <?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'family' ); ?> </span></legend>
 			<label for="child">
-			<input class="valinp" type="radio" name="family" value="child" id="child" <?php xfn_check( 'family', 'child' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'child' ); ?>
+			<input class="valinp" type="radio" name="family" value="child" id="child" <?php xfn_check( 'family', 'child' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'child' ); ?>
 			</label>
 			<label for="kin">
-			<input class="valinp" type="radio" name="family" value="kin" id="kin" <?php xfn_check( 'family', 'kin' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'kin' ); ?>
+			<input class="valinp" type="radio" name="family" value="kin" id="kin" <?php xfn_check( 'family', 'kin' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'kin' ); ?>
 			</label>
 			<label for="parent">
-			<input class="valinp" type="radio" name="family" value="parent" id="parent" <?php xfn_check( 'family', 'parent' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'parent' ); ?>
+			<input class="valinp" type="radio" name="family" value="parent" id="parent" <?php xfn_check( 'family', 'parent' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'parent' ); ?>
 			</label>
 			<label for="sibling">
-			<input class="valinp" type="radio" name="family" value="sibling" id="sibling" <?php xfn_check( 'family', 'sibling' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'sibling' ); ?>
+			<input class="valinp" type="radio" name="family" value="sibling" id="sibling" <?php xfn_check( 'family', 'sibling' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'sibling' ); ?>
 			</label>
 			<label for="spouse">
-			<input class="valinp" type="radio" name="family" value="spouse" id="spouse" <?php xfn_check( 'family', 'spouse' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'spouse' ); ?>
+			<input class="valinp" type="radio" name="family" value="spouse" id="spouse" <?php xfn_check( 'family', 'spouse' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'spouse' ); ?>
 			</label>
 			<label for="family">
-			<input class="valinp" type="radio" name="family" value="" id="family" <?php xfn_check( 'family' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'none' ); ?>
+			<input class="valinp" type="radio" name="family" value="" id="family" <?php xfn_check( 'family' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'none' ); ?>
 			</label>
 		</fieldset></td>
 	</tr>
 	<tr>
-		<th scope="row"><?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'romantic' ); ?></th>
-		<td><fieldset><legend class="screen-reader-text"><span> <?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'romantic' ); ?> </span></legend>
+		<th scope="row"><?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'romantic' ); ?></th>
+		<td><fieldset><legend class="screen-reader-text"><span> <?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'romantic' ); ?> </span></legend>
 			<label for="muse">
-			<input class="valinp" type="checkbox" name="romantic" value="muse" id="muse" <?php xfn_check( 'romantic', 'muse' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'muse' ); ?>
+			<input class="valinp" type="checkbox" name="romantic" value="muse" id="muse" <?php xfn_check( 'romantic', 'muse' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'muse' ); ?>
 			</label>
 			<label for="crush">
-			<input class="valinp" type="checkbox" name="romantic" value="crush" id="crush" <?php xfn_check( 'romantic', 'crush' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'crush' ); ?>
+			<input class="valinp" type="checkbox" name="romantic" value="crush" id="crush" <?php xfn_check( 'romantic', 'crush' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'crush' ); ?>
 			</label>
 			<label for="date">
-			<input class="valinp" type="checkbox" name="romantic" value="date" id="date" <?php xfn_check( 'romantic', 'date' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'date' ); ?>
+			<input class="valinp" type="checkbox" name="romantic" value="date" id="date" <?php xfn_check( 'romantic', 'date' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'date' ); ?>
 			</label>
 			<label for="romantic">
-			<input class="valinp" type="checkbox" name="romantic" value="sweetheart" id="romantic" <?php xfn_check( 'romantic', 'sweetheart' ); ?> />&nbsp;<?php /* translators: xfn: http://gmpg.org/xfn/ */ _e( 'sweetheart' ); ?>
+			<input class="valinp" type="checkbox" name="romantic" value="sweetheart" id="romantic" <?php xfn_check( 'romantic', 'sweetheart' ); ?> />&nbsp;<?php /* translators: xfn: https://gmpg.org/xfn/ */ _e( 'sweetheart' ); ?>
 			</label>
 		</fieldset></td>
 	</tr>
 
 </table>
-<p><?php _e( 'If the link is to a person, you can specify your relationship with them using the above form. If you would like to learn more about the idea check out <a href="http://gmpg.org/xfn/">XFN</a>.' ); ?></p>
+<p><?php _e( 'If the link is to a person, you can specify your relationship with them using the above form. If you would like to learn more about the idea check out <a href="https://gmpg.org/xfn/">XFN</a>.' ); ?></p>
 <?php
 }
 
diff --git a/src/wp-content/themes/twentyeleven/header.php b/src/wp-content/themes/twentyeleven/header.php
index df8f7ee..403f26e 100644
--- a/src/wp-content/themes/twentyeleven/header.php
+++ b/src/wp-content/themes/twentyeleven/header.php
@@ -47,7 +47,7 @@ if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
 
 	?>
 	</title>
-<link rel="profile" href="http://gmpg.org/xfn/11" />
+<link rel="profile" href="https://gmpg.org/xfn/11" />
 <link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>" />
 <link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>" />
 <!--[if lt IE 9]>
diff --git a/src/wp-content/themes/twentyfifteen/header.php b/src/wp-content/themes/twentyfifteen/header.php
index a088d85..f348e24 100644
--- a/src/wp-content/themes/twentyfifteen/header.php
+++ b/src/wp-content/themes/twentyfifteen/header.php
@@ -13,7 +13,7 @@
 <head>
 	<meta charset="<?php bloginfo( 'charset' ); ?>">
 	<meta name="viewport" content="width=device-width">
-	<link rel="profile" href="http://gmpg.org/xfn/11">
+	<link rel="profile" href="https://gmpg.org/xfn/11">
 	<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
 	<!--[if lt IE 9]>
 	<script src="<?php echo esc_url( get_template_directory_uri() ); ?>/js/html5.js"></script>
diff --git a/src/wp-content/themes/twentyfourteen/header.php b/src/wp-content/themes/twentyfourteen/header.php
index 4dec164..b5d2864 100644
--- a/src/wp-content/themes/twentyfourteen/header.php
+++ b/src/wp-content/themes/twentyfourteen/header.php
@@ -22,7 +22,7 @@
 	<meta charset="<?php bloginfo( 'charset' ); ?>">
 	<meta name="viewport" content="width=device-width">
 	<title><?php wp_title( '|', true, 'right' ); ?></title>
-	<link rel="profile" href="http://gmpg.org/xfn/11">
+	<link rel="profile" href="https://gmpg.org/xfn/11">
 	<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
 	<!--[if lt IE 9]>
 	<script src="<?php echo get_template_directory_uri(); ?>/js/html5.js"></script>
diff --git a/src/wp-content/themes/twentysixteen/header.php b/src/wp-content/themes/twentysixteen/header.php
index 9bc0d3e..afd2ab9 100644
--- a/src/wp-content/themes/twentysixteen/header.php
+++ b/src/wp-content/themes/twentysixteen/header.php
@@ -14,7 +14,7 @@
 <head>
 	<meta charset="<?php bloginfo( 'charset' ); ?>">
 	<meta name="viewport" content="width=device-width, initial-scale=1">
-	<link rel="profile" href="http://gmpg.org/xfn/11">
+	<link rel="profile" href="https://gmpg.org/xfn/11">
 	<?php if ( is_singular() && pings_open( get_queried_object() ) ) : ?>
 	<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
 	<?php endif; ?>
diff --git a/src/wp-content/themes/twentytwelve/header.php b/src/wp-content/themes/twentytwelve/header.php
index 2b95b49..747ed6f 100644
--- a/src/wp-content/themes/twentytwelve/header.php
+++ b/src/wp-content/themes/twentytwelve/header.php
@@ -22,7 +22,7 @@
 <meta charset="<?php bloginfo( 'charset' ); ?>" />
 <meta name="viewport" content="width=device-width" />
 <title><?php wp_title( '|', true, 'right' ); ?></title>
-<link rel="profile" href="http://gmpg.org/xfn/11" />
+<link rel="profile" href="https://gmpg.org/xfn/11" />
 <link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>" />
 <?php // Loads HTML5 JavaScript file to add support for HTML5 elements in older IE versions. ?>
 <!--[if lt IE 9]>
diff --git a/src/wp-includes/theme-compat/header.php b/src/wp-includes/theme-compat/header.php
index cd92145..e357efa 100644
--- a/src/wp-includes/theme-compat/header.php
+++ b/src/wp-includes/theme-compat/header.php
@@ -18,7 +18,7 @@ _deprecated_file(
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
 <head>
-<link rel="profile" href="http://gmpg.org/xfn/11" />
+<link rel="profile" href="https://gmpg.org/xfn/11" />
 <meta http-equiv="Content-Type" content="<?php bloginfo( 'html_type' ); ?>; charset=<?php bloginfo( 'charset' ); ?>" />
 
 <title><?php echo wp_get_document_title(); ?></title>