In reply to Brad Enslen.

It's WordPress specific, though some other indie sites with Webmention support it, but I've got a box at the bottom of each post (as do you) where you can manually ping me with Webmentions. You can also use the manual form at https://boffosocko.com/wp-json/webmention/1.0/endpoint, though there you'll need to input two URLs instead of just one.