Has og:description
og:description is the partner of og:title and serves the same purpose — a clean, structured summary that agents can read without parsing the body. It's the difference between an agent showing your page as a one-line preview versus a URL.
How the check decides
The check reads the content attribute of <meta property="og:description"> and asserts it is present and non-empty. Fails if the tag is missing or empty.
How to implement it
Add <meta property="og:description"> to every page’s <head>. It’s fine for it to be the same string as <meta name="description">; what matters is that both are populated.
Pass
<meta property="og:description"
content="Install a14y in under a minute and audit your first site.">
Fail
<!-- no og:description -->