It does more, than that, it "pings" the site I reply to. This used to be a by default thing in CMSes like WordPress, when Pingback (and Trackback) was widesprea

It does more, than that, it "pings" the site I reply to. This used to be a by default thing in CMSes like WordPress, when Pingback (and Trackback) was widespread, but it died out due to spam. Webmentions are trying to revive it, more here: https://indieweb.org/reply https://indieweb.org/reply