rel="me" links for the IndieWeb audience
This will make https://indiewebify.me/validate-rel-me/?url=https%3A%2F%2Fquitter.se%2Fhannes2peer recognize rel="me" tags that help IndieWeb sites and services determine who you are based on which other websites you publish (such as blog etc)
See for example: https://indiewebify.me/validate-rel-me/?url=https%3A%2F%2Fsocial.umeahackerspace.se%2Fmmn where my blog links back to my GNU social account and the service recognizes it.