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Nice, yes, that is similar. It would be a lot more useful for me to get a trackback though – to make the blog engine receive webmentions by just converting a webmention to a trackback by your or another service would be the easiest way possible.

And something I would push into our html markup and debug (the service in the middle might make some origin checks fail), despite my concerns with webmentions as a spec and concept.

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I just made an issue to capture that request, that could definitely be interesting. https://github.com/aaronpk/webmention.io/issues/62

The main reason Webmention is less susceptible to spam than Trackback is, is because with Trackback, there is no requirement that the comment text have its own URL. At least with Webmention, a spammer has to create a URL for the spam comment.

The webmention.io service sends a secret token in the payload so you can verify the request came from there.

That is what I kind of tackled above, I think: In practice, all blog engines will confirm that the URL the trackback points to actually contains a link to the site receiving the trackback. I see no practical difference there between the two protocols. But your use of comments and comment urls makes me think I might miss your point?

Thanks for opening the issue, I will add a comment and subscribe.

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