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<a rel="octo:bookmarks" data-octothorpes="websites,tools" href="https://stefanbohacek.com/blog/resources-for-keeping-the-web-free-open-and-poetic/">Useful Website Building tools</a>Bookmarks, citations, and other typed relationships can carry their own hashtag terms, independent of the page’s tags.
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<a rel="octo:bookmarks" data-octothorpes="websites,tools" href="https://stefanbohacek.com/blog/resources-for-keeping-the-web-free-open-and-poetic/">Useful Website Building tools</a>
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data-octothorpesto a typed relationship link to attach terms to that specific relationship. The terms apply to the link itself, not the page — so a bookmark taggedwebsitesis queryable even when the page it lives on has no#websiteshashtag. OP keeps the tags used by one domain on its own pages completely separate from tags one domain used on another domain’s pages.