`og.title`

Default: warn
Plugin: og

A page has an og:title.

Why: Link previews show the og:title as their heading. Without it, apps guess from the page.

When off: pages without og:title pass.

<!-- ✗ Fails -->
<head>
  <title>About us</title>
</head>

<!-- ✓ Passes -->
<head>
  <meta property="og:title" content="About Bongo Bakery" />
</head>

References

The Open Graph protocol: og:title is a required property. It only affects link previews, so the rule warns.