Link fields, menu generation and routing
Compare typolink-generated links with fixed URLs in the content. Target the fixed source instead of just adding another redirect.
Check whether the link is stored as a TYPO3 page reference, as a record link or as a fixed path. After slug or routing changes, fixed URLs can become obsolete, while dynamically generated references already point to the new destination.
Where to check the setting in TYPO3
In the link browser, check the stored destination and, for dataset links, the link handler and the route enhancer. Internally, use stable page or record references if possible. A manually entered old talking URL is not automatically updated by a new routing configuration.
Example of this specific finding
Illustrative control case: Each category page still links to /product-old/, even though the article is permanently under /product-new/. The forwarding works, but is needed for every link call.
follow-up audit in TYPO3
Track the visible link separately in navigation, flow text and extension list. Not only control the target data set in the backend, but the actually output href value.
Update the URL in the generating navigation or data source. Maintain the old forwarding for remaining external links.
Derogations and scope
A functioning redirect is less urgent than a defective target. Not every single forwarding justifies a major renovation.
Reference: TYPO3 13.4 with EXT:seo. For other major versions and own extensions, responsibilities may differ; check the actually installed output.
Classify the general error
Definition, system-independent causes and further correction examples: Correct the linking template instead of just the redirect target