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title.missing

Title is missing. Level: Error.

When it is raised

Raised when no title is found in og:title, twitter:title or a <title> element in the first 300,000 characters of the HTML, outside comments. A meta tag counts only when it has a property or name attribute and a content attribute. Only the first og:title tag that has a content attribute is read; if its content is empty or whitespace, that tag counts as absent even when a later og:title has a value. twitter:title is read the same way. Values are trimmed before entities are decoded, so whitespace written as a character reference counts as content. The <title> read is the first one in that window whose text contains no "<" character, wherever it sits, so an SVG <title> in the body can be the one read; if its text is empty or whitespace, no title comes from <title>.

What it does to a shared link

No title was found in og:title, twitter:title or <title>. LinkedIn and WhatsApp document og:title as the title tag, and Facebook's sharing guide documents og:* tags.

How to fix it

  1. Add an og:title meta tag inside <head>, with a property attribute and a non-empty content attribute holding the headline the card should show.
  2. Keep a non-empty <title> element as well, since it is the last source the API looks at.
  3. If head.truncated was also raised, check whether a title tag sits beyond the first 300,000 characters and move the card tags nearer the top of <head>.
<head> <title>Quarterly report 2026</title> <meta property="og:title" content="Quarterly report 2026"> </head>

Related checks

Sources