Denis Yanchevskiy

DCO Insert Analytics Code is a WordPress plugin is intended for insert analytics code(or any custom code) before </head> or after <body> or before </body>
<h4>Usage</h4>
After installation and activation, you can insert the necessary code to the respective fields on the plugin settings page. 
<a href="https://github.com/yadenis/DCO-Insert-Analytics-Code" rel="nofollow ugc">GitHub</a>
<h4>Settings</h4>
<ul>
<li>Before </head> code</li>
<li>After <body> code</li>
<li>Before </body> code</li>
</ul>
<h4>Filters list</h4>
dco_iac_get_options
Filter for hardcoding override plugin settings. You won’t be able to edit them on the settings page anymore when using this filter.
dco_iac_insert_before_head
Filter to change the code is inserted before </head>
dco_iac_insert_before_head_show
Filter to change show the code is inserted before </head>
dco_iac_insert_after_body
Filter to change the code is inserted after <body>
dco_iac_insert_after_body_show
Filter to change show the code is inserted after <body>
dco_iac_insert_before_body
Filter to change the code is inserted before </body>
dco_iac_insert_before_body_show
Filter to change show the code is inserted before </body>
dco_iac_disable_do_shortcode
Filter to disable shortcode processing in inserted codes
<h4>Examples of using filters</h4>
Hardcoding override plugin settings
<pre><code>/*
* $current - current plugin settings
*
* $options - plugin settings from database
*
* $default - default plugin settings
*/

function custom_get_options($current, $options, $default) {
 $array = array(
 'before_head' => '',
 'before_head_show' => '0',
 'after_body' => '',
 'after_body_show' => '1',
 'before_body' => '',
 'before_body_show' => '2'
 );

 return $array;
}

add_filter('dco_iac_get_options', 'custom_get_options', 10, 3);
</code></pre>
Change before </head> code
<pre><code>/*
* $code - value from "before </head>" setting
*/

function custom_before_head_code( $code ) {
 return $code . '' . "\n";
}

add_filter( 'dco_iac_insert_before_head', 'custom_before_head_code' );
</code></pre>
Change before </body> code show
<pre><code>/*
* $value - value from "before </body> show" setting
*/

function custom_before_head_code( $value ) {
 return '2';
}

add_filter( 'dco_iac_insert_before_body_show', 'custom_before_body_show' );
</code></pre>
Disable shortcode processing in insert codes
<pre><code>add_filter('dco_iac_disable_do_shortcode', '__return_true');
</code></pre>

DCO Insert Analytics Code

Allows you to insert analytics code before </head> or after <body> or before </body>

antoniolite

Yandex Metrica is a Yandex’s free tool for everyone to track your website. This plugins inserts the needed JSON-LD Schema in your post pages so you can use the content reports in Yandex Metrica.
The content reports in Yandex Metrica show you key publisher indicators in real time, the most popular articles and click-through sources, engagement indicators and separate traffic rubrics, traffic and audience interest for materials by author, engagement and traffic indicators for various topics.
You can read about the content reports at the official <a href="https://yandex.com/blog/metrica/yandex-metrica-for-media-introducing-content-reports" rel="nofollow ugc">Yandex Metrica Blog</a>.
You can register with Yandex Metrica and create your tag for free in the <a href="https://metrica.yandex.com/" rel="nofollow ugc">official web site</a>.
You need to insert the Yandex Metrica tracking code in your website.
Please note that you must activate the content reports in your tag’s settings.
<h4>Data included in the JSON-LD Schema</h4>
<ul>
<li>Post
<ul>
<li>Title</li>
<li>Description</li>
<li>URL</li>
<li>Featured image</li>
<li>Category</li>
<li>Tags</li>
<li>Date published</li>
<li>Date updated</li>
</ul>
</li>
<li>Author
<ul>
<li>Display name</li>
<li>URL</li>
<li>Avatar</li>
</ul>
</li>
<li>Publisher
<ul>
<li>Name</li>
<li>URL</li>
<li>Logo</li>
</ul>
</li>
</ul>
About the BreadcrumbList, this is how the plugin works:
As first step, the plugin recovers all the post’s categories, ordering them by parent category, so the first category or categories in the list will be them without parent category, and then by category name. If you use Yoast SEO and you set the primary category, this one category will be the category passed as ListItem with position 1 in the JSON-LD Schema. If not using Yoast SEO, the first category without parent category will be ListItem with position 1 in the JSON-LD Schema.
Once the plugin set the main category, it will check with all the rest categories if some of these is a subcategory, and the first one occurrence will be the ListItem with position 2 in the JSON-LD Schema.

JSON-LD Schema for Yandex Metrica

Insert the needed JSON-LD Schema in your post pages so you can use the content reports in Yandex Metrica

DCO Insert Analytics Code vs JSON-LD Schema for Yandex Metrica