Product name, SEO override and category template
Check the head output of the product detail page. A visible product name in H1 does not prove that the SEO plugin delivers a title tag.
A product title can be created from the product name, an SEO field, and automatic template additions. For variants, only the main product can have an independent page title. First, determine which public side is evaluated at all.
Where to check the setting in WooCommerce
Compare product names, individual SEO fields, and the title template for the product content type. For categories, check the product_cat taxonomy separately. If no title appears despite filled fields, check the WordPress theme output and the relevant title filter.
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 WooCommerce
Compare two different products and one product category. Correct identical data imports and fixed theme fallbacks separately.
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.
Regarding: WooCommerce on WordPress. Block and classic product templates as well as SEO extensions can have different output locations.
Classify the general error
Definition, system-independent causes and further correction examples: Track the title output from CMS field to HTML