tl;dr Twitter uses the name attribute, Facebook/opengraph uses the property attribute, therefore... <meta name="twitter:url" property="og:url" content="https:

tl;dr Twitter uses the name attribute, Facebook/opengraph uses the property attribute, therefore... <meta name="twitter:url" property="og:url" content="https://adactio.com/journal/9881"> https://adactio.com/journal/9881">