You have reached my webmention endpoint. Webmention is a way for you to tell me "I have written a response to something you posted".
The current state of affairs means I do receive Webmentions, but I do not do anything with them yet (except for looking at them myself, manually, once in a while).
With the following form, you can send me the link to your response. You can also send a notification directly by way of a HTTP POST request here.