Replied to a post by Bix (bix.blog)

Has anyone gotten webmention set up on a WordPress blog solely for internal references? So that when you link to previous of your own posts, those posts will then also link back, creating a deeper contextual web on your blog?

Bix, this functionality is definitely built into the Webmention for WordPress plugin as a default. You may need to go to Webmention settings (/wp-admin/admin.php?page=webmention) and make sure your self-ping settings will allow it.

If you wanted, you could also modify the Webmention type and/or the excerpt that shows in the comment section, though you’d need to do it manually.

I’m not aware of anyone using it “only” for this purpose. I think David Shanske also has built some whitelisting settings for Webmention moderation so that you can automatically approve ones from certain domains. I would suspect you could use some of those portions to reject any incoming webmentions from external URLs, but it may require a few lines of code to do it.</p