MicroFormats
ThoughtStorms Wiki
Context : IndieWeb / WebRenewal
Microformats 2 seems to be the latest, embed meaningful data in plain HTML format.
Validate your H-Card https://indiewebify.me/validate-h-card/
- http://ifindkarma.typepad.com/relax/2004/12/microformats.html
- site : http://www.microformats.org/
- The abstract version : MicroModels
- RelMeAuth is similar principle (embedding metadata in web pages)