SEO fields and title templates per content type
Check the title output of the active theme and the responsible SEO filter. The post title visible in the editor does not yet prove a title element in the head.
Compare the saved individual title with the title template of the active SEO plugin. Theme and page builders can add additional values. For archives, titles and descriptions often come from their own rules instead of from the contribution.
Where to check the setting in WordPress
If the title is missing, check the theme support for the title tag and the wp_head call in the classic theme. Then you control wp_get_document_title or the SEO plugin override. The plugin is often responsible for meta descriptions and open graphs; the post title alone does not generate these fields.
Example of this specific finding
Illustrative control case: The CMS field is filled in, but the title element is missing in the delivered head. The visible H1 does not replace this metadata.
<head>
<title>Fahrradreparatur in Köln – Werkstatt Beispiel</title>
</head>follow-up audit in WordPress
Retrieve a contribution with an individual field, one without override and an archive. This is the only way to distinguish whether an individual value or the general fallback is wrong.
Track the value from the editorial field to the template and possible extension to the HTTP result. Check direct entries and different page types.
Derogations and scope
A title within an SVG is not a document heading in the head. Such graphic descriptions do not count as a replacement or additional document title.
Related: WordPress with classic or block theme. SEO plugins and page builders are different; there is no universal menu path for all installations.
Classify the general error
Definition, system-independent causes and further correction examples: Track the title output from CMS field to HTML