mihai

This plugin will modify the links on pingbacks (and trackbacks) to remove the 
“external nofollow” for links to your own blog.
More info:
<ul>
<li><a href="http://patchlog.com/follow-self-pings/" rel="nofollow ugc">Follow Self Pings plugin</a>.</li>
<li>Check out the other <a href="http://patchlog.com/wordpress/" rel="nofollow ugc">WordPress plugins</a> by the same author.</li>
</ul>

Follow Self Pings

Ajay

WebberZone

Spammers target old posts in a hope that you won’t notice the comments on them. Why not stop them in their tracks by just shutting off comments and pingbacks? <a href="https://webberzone.com/plugins/autoclose/" rel="nofollow ugc">Auto-Close Comments, Pingbacks and Trackbacks</a> lets you automatically close comments, pingbacks and trackbacks on your posts, pages and custom post types.
You can also choose to keep comments, pingbacks, or trackbacks open on certain posts, pages or custom post types. Just enter a comma-separated list of post IDs in the Settings page.
An extra feature is the ability to delete post revisions or limit their number.
Found a bug or want to contribute? PRs and issues welcome on <a href="https://github.com/WebberZone/autoclose" rel="nofollow ugc">GitHub</a>. For help, use the <a href="https://wordpress.org/support/plugin/autoclose" rel="ugc">support forum</a> or <a href="https://webberzone.com/support/" rel="nofollow ugc">premium support</a>.
<h3>Key Features</h3>
<ul>
<li>Close (or open) comments on posts, pages, attachments and even Custom Post Types</li>
<li>Close (or open) pingbacks and trackbacks as well across all post types. You can also choose to delete them</li>
<li>Schedule a cron job to automatically close comments, pingbacks and trackbacks daily</li>
<li>Delete all post revisions or limit the number of revisions by post type</li>
<li>Exclude specific post IDs from auto-close</li>
<li>Block self-pings and custom ping URLs</li>
<li>Schedule the closing of comments, pingbacks, and trackbacks for the current post</li>
</ul>

Auto-Close Comments, Pingbacks and Trackbacks

Auto-Close keeps your site clean by automatically closing comments, pingbacks, and trackbacks—so you can focus on content, not cleanup.

Follow Self Pings vs Auto-Close Comments, Pingbacks and Trackbacks