I went and looked at this again Matt and used the actual submission url and maybe it worked? It’s entirely possible my own site is not sending web mentions correctly or that in all my recent theme changes I messed up the markup from my own posts. Anyway, here’s the url for my mention: https://webmention.io/mattcool.tech/webmention/zHltDCRCJ8PZbOUbM_YP