I just made a search about ping and pingback, but I did not find an answer to my very simple question: what is this, and what is this for?
Every time I write an article in my blog, I have the option to allow pingbacks, or no. I do, but I do so because this is the default option. I have no clue what this is.
Il happened to me to make comments called pingbacks by mistake. I got an email informing me about. When I saw the comment, it make no sense at all, and deleted this.
But what is this?