what it is and how to cook it

Webmentions are a way to send in your comments and other such likes, no SMS or registration required. If you have a website and it can do it, you know what to do. If you don’t have your own website but would still like to comment, try using CommentParade or another such service.

Thing is, you don’t leave your comment on my site, you do it elsewhere. I get a notification, and a simple JavaScript at the end of the page asks the aggregator (webmention.io in my case) for the comments and shows them to you. It’s all happening right in your browser, comments or likes are not stored on this site. This, by the way, is why there’s no point in asking me to remove any of those; if you need your comment removed, remove it wherever you’ve published it.

Comments are webmentions.