Adds a custom set of tags to the section of all posts & pages.

Noted That:

To install correctly this head-meta-data.zip.
Fisrt Download the head-meta-data.zip to your computer
Extract/Open head-meta-data.zip to Your Computer.
Then, Find readme.txt file inside head-meta-data.zip and Open readme.txt.
Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
Then, Follow the the Tips Below.

Start the Tips:

1. First Download "head-meta-data.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "head-meta-data.zip" Downloaded plugin from your computer, Where you downloaded head-meta-data.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Head Meta Data" folder is added on left sidemenu. Now, Click on "Head Meta Data" folder.

Noted that: If you do not see "Head Meta Data" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Head Meta Data Configurtions and Settings or How to work "Head Meta Data" in your WordPress site.

After Activated Plugin According to Step-6 then,

Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
or Direct go to: https://yourdomain/wp-admin/plugins.php
Then, Find "Head Meta Data" Activated Plugin from Plugin List.
Then, Click on "Settings" from Plugin that is Head Meta Data
Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Guide

Guide
Installation Upload the plugin to your blog and activate Visit the settings to configure your options More info on installing WP plugins Shortcodes Shortcodes enable you to include dynamic bits of information in your meta tags. Head Meta Data currently provides the following shortcodes: `[hmd_post_excerpt]` — post excerpt `[hmd_post_date]` — post date `[hmd_post_author]` — post author name `[hmd_post_title]` — post title `[hmd_post_cats]` — post categories `[hmd_post_tags]` — post tags `[hmd_year]` — current year `[hmd_tab]` — adds tab space to markup So you can include any of these shortcodes in the “Custom Content” setting, and the displayed information will reflect the current post being viewed. On non-post views, like the homepage, archives, and search results, the shortcodes display general information about the site: `[hmd_post_excerpt]` — site description `[hmd_post_date]` — date of latest post `[hmd_post_author]` — site name `[hmd_post_title]` — site description `[hmd_post_cats]` — all view categories `[hmd_post_tags]` — all view tags For example, we could add this meta tag via the “Custom Content” setting: Another example: use shortcodes to dynamically output SEO meta tags: `[hmd_post_title] \| Your Awesome Website` This outputs dynamic titles and descriptions, useful for SEO. If you have ideas for other shortcodes, let me know! Custom meta tags Using this method, you can add custom meta tags to the section of any post or page. Follow these steps: Visit the “Edit Post” or “Edit Page” screen Open the “Custom Fields” meta box Add a new custom field For the custom field Name, enter `head-meta-data` For the custom field Value, enter any tag/markup Save changes and done. For example, for the custom field value, we could enter the following markup: After saving changes that exact code will be included in the post’s section. Tip: You can include tab spaces in the custom field value, for example: Useful for indenting code to align with other meta tags ???? Tip: By default, any custom tags are displayed after the default meta tags. To disable the default meta tags on any post, add a new custom field with the name `hmd_disable_default`. Give it a value of `1`. Save changes and done. Upgrades To upgrade Head Meta Data, remove the old version and replace with the new version. Or just click “Update” from the Plugins screen and let WordPress do it for you automatically. Note: uninstalling the plugin from the WP Plugins screen results in the removal of all settings from the WP database. Restore Default Options To restore default plugin options, either uninstall/reinstall the plugin, or visit the plugin settings > Restore Default Options. Like the plugin? If you like Head Meta Data, please take a moment to give a 5-star rating. It helps to keep development and support going strong. Thank you! Uninstalling Head Meta Data cleans up after itself. All plugin settings will be removed from your database when the plugin is uninstalled via the Plugins screen.

Installation

Upload the plugin to your blog and activate
Visit the settings to configure your options

More info on installing WP plugins

Shortcodes

Shortcodes enable you to include dynamic bits of information in your meta tags. Head Meta Data currently provides the following shortcodes:

[hmd_post_excerpt] — post excerpt
[hmd_post_date] — post date
[hmd_post_author] — post author name
[hmd_post_title] — post title
[hmd_post_cats] — post categories
[hmd_post_tags] — post tags
[hmd_year] — current year
[hmd_tab] — adds tab space to markup

So you can include any of these shortcodes in the “Custom Content” setting, and the displayed information will reflect the current post being viewed. On non-post views, like the homepage, archives, and search results, the shortcodes display general information about the site:

[hmd_post_excerpt] — site description
[hmd_post_date] — date of latest post
[hmd_post_author] — site name
[hmd_post_title] — site description
[hmd_post_cats] — all view categories
[hmd_post_tags] — all view tags

For example, we could add this meta tag via the “Custom Content” setting:

Another example: use shortcodes to dynamically output SEO meta tags:

[hmd_post_title] | Your Awesome Website

This outputs dynamic titles and descriptions, useful for SEO.

If you have ideas for other shortcodes, let me know!

Custom meta tags

Using this method, you can add custom meta tags to the section of any post or page. Follow these steps:

Visit the “Edit Post” or “Edit Page” screen
Open the “Custom Fields” meta box
Add a new custom field
For the custom field Name, enter head-meta-data
For the custom field Value, enter any tag/markup
Save changes and done.

For example, for the custom field value, we could enter the following markup:

After saving changes that exact code will be included in the post’s section.

Tip: You can include tab spaces in the custom field value, for example:

Useful for indenting code to align with other meta tags ????

Tip: By default, any custom tags are displayed after the default meta tags. To disable the default meta tags on any post, add a new custom field with the name hmd_disable_default. Give it a value of 1. Save changes and done.

Upgrades

To upgrade Head Meta Data, remove the old version and replace with the new version. Or just click “Update” from the Plugins screen and let WordPress do it for you automatically.

Note: uninstalling the plugin from the WP Plugins screen results in the removal of all settings from the WP database.

Restore Default Options

To restore default plugin options, either uninstall/reinstall the plugin, or visit the plugin settings > Restore Default Options.

Like the plugin?

If you like Head Meta Data, please take a moment to give a 5-star rating. It helps to keep development and support going strong. Thank you!

Uninstalling

Head Meta Data cleans up after itself. All plugin settings will be removed from your database when the plugin is uninstalled via the Plugins screen.

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Reffered: https://wordpress.org/