This article is a stub. You can help the IndieWeb wiki by expanding it. The Open Graph protocol (OGP) is an open* standard developed and controlled by Facebook for expressing the primary subject of an HTML page in custom
tags for the purpose of Facebook showing link previews; in practice only a couple are even sometimes necessary for that use-case, and you can use existing open standards instead.*OGP is licensed using the Open Web Foundation Agreement, Version 0.9. Though not as good as CC0+OWFa 1.0, it's still a considerably open license for a web standard written and controlled by one company.AlternativeUse microformats to markup the visible information on the page instead, which can be used for a link preview - the whole purpose of OGP.How ToTo add Open Graph tags to a page, add only the tags you need, because Facebook will use other existing page markup and information in the absence of og: tags.How to set titleYou do not need og:title if the
tag of your page is just...</body></html>
