You can use Telegraph to receive Webmentions when your site is linked to by any website tracked by Superfeedr, even if that site doesn't send Webmentions itself! First, sign in to Telegraph using your domain. From the top right menu, click the "New Site" link. Enter "Mentions" for the name (or anything you want, but that's what I use), and enter your home page URL. Entering your URL here is how Telegraph knows which links in the Superfeedr feed to send webmentions for. After you create the site, click on the settings icon next to the name.