With this function, the resolver checks all associated URLs and marks them either with a green tick or, in the event of an error, with a red cross. Users are redirected to the first URL marked in green.

Analyse	urn:nbn:de:101:1-2023121220533607826791
	https://www.bookrix.de/_ebook-ernst-ludwig-becker-das-maedchen-mit-dem-roten-schal/ STATUS : 404 → Skipping : https://www.bookrix.de/_ebook-ernst-ludwig-becker-das-maedchen-mit-dem-roten-schal/
	https://d-nb.info/1313134120/34 Success. Document available.

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