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:101:1-2023062721535076948422
	https://www.bookrix.de/_ebook-rudolf-h-daumann-gefahr-aus-dem-weltall/ STATUS : 404 → Skipping : https://www.bookrix.de/_ebook-rudolf-h-daumann-gefahr-aus-dem-weltall/
	https://d-nb.info/1294184199/34 Success. Document available.

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