Mats Westholm

This plugin lets the user write a separate description for each post, page, front page or custom post type post which is added as a meta description to the html head.
The individual description for a post or page is typed and edited in a separate text field just below the text field for editing the post text.
You can also add meta description to category, tag and custom taxonomy archive as well as front page.
To add description to a category, go to Dashboard > Posts > Categories. Select a category in the table to the wright or create a new category. Type the description in the text field Description, Weather or not this description will be viewed for visitors on the site is up to each theme. The Easy WP Meta Description plugin will add the description as meta information in the html head.
Descriptions for tag and custom taxonomies are edited in similar fashion.
To edit a front page description you would go to Dashboard > Settings > General and edit Front page meta description. 
If you use a static page as Front page the static page Meta description will be used and Front page meta description at general setting will now show.
This plugin relies on the wp_head() action hook. It will only work if the theme uses it. Most themes do.
When deleted uninstall script runs which deletes all changes in the database perfomed by the plugin. 
If you dont want to delete your descriptions and other settings only deactivate and dont delete.
Tested with Gutenberg.

Easy WP Meta Description


Unlike the SEO plugins that are available, this plugin is lightweight and all that is needed.


All that is needed

Simple and easy to use wordpress plugin to add the meta description tag in html head

Joe Rhoney

average.technology

<blockquote>
Notice 
 Average is changing its name to AddFunc. Much better, huh?! Therefore, this plugin has been republished as <a href="https://wordpress.org/plugins/addfunc-head-footer-code/" rel="ugc">AddFunc Head & Footer Code</a>. The “AddFunc version” is compatible with the “Average version,” so installation and activation of either or both is risk-free. This also enables you to manually transfer all of your head and footer code to the “AddFunc version” (if you wish). The “Average version” will remain available with minimal support until it becomes a burden for AddFunc (probably for many years to come, as of 2014). Any new features will only be added to the “AddFunc version,” so it is of course the recommended version (at least for future projects). Thanks!
</blockquote>
Allows admins to add code to the <code><head></code> and/or footer of an individual post and/or site-wide. Ideal for scripts such as Google Analytics conversion tracking code and any other general or page-specific JavaScript.
Custom support tickets are available
See <a href="https://wordpress.org/plugins/average-head-footer-code/other_notes/" rel="ugc">Other Notes</a> tab for details.
<h3>Custom Support</h3>
If you have a custom support need, <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=7AF7P3TFKQ2C2" rel="nofollow ugc">please purchase your support ticket here</a>. Support tickets are responded to within 24 hours, but we answer them as soon as possible.
How it works
<ol>
<li><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=7AF7P3TFKQ2C2" rel="nofollow ugc">Purchase a support ticket via PayPal</a></li>
<li>You get a chance to provide the best way to contact you and a description of your need</li>
<li>I contact you as soon as I can (no less than 24 hours) and help resolve your issue</li>
</ol>
Note: This is for custom needs for help, not problems with the plugin, or instructions that should already be explain in the description. If you feel there are important details omitted from the description, installation steps, etc. of the plugin, please report them in the Support forum. Thanks!

Average Head & Footer Code

Easily add code to your head and/or footer, site-wide and/or on any individual page/post.

Easy WP Meta Description vs Average Head & Footer Code