See https://en.wikipedia.org/wiki/Webmention https://en.wikipedia.org/wiki/Webmention - a newer, simpler protocol that doesn't seem to have the same spam proble

See https://en.wikipedia.org/wiki/Webmention https://en.wikipedia.org/wiki/Webmention - a newer, simpler protocol that doesn't seem to have the same spam problems. I'll have to look into it more.