There’s a recurring project idea in the indieweb community: a service that sends webmentions on behalf of web sites that don’t send them already. We already have a handful of services that do this for some verticals, and we’ve kicked around ideas for more.
Here’s a straw man design for a service that does the opposite: finds web pages that link to your web site and sends you webmentions for them.
You enter your domain on the front page. When you do, it sets up a Superfeedr tracking feed that watches for links to your site. When it finds one, it notifies the service, which sends a webmention from the source page to each page on your site that it links to.
…that’s it! It’s so small and simple, I almost hoped I could do it with IFTTT or Zapier or something similar, but not quite. It would definitely be easy enough on App Engine or Lambda or any other PaaS.
This is still just another vertical, of course. The real coup would be to get Superfeedr to do this for all web sites it tracks, which is a big swathe of the public web. They’re in a unique position, too; they already do most of the hard work, and they’re indieweb friendly to boot!