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:101:1-2021081113513140853767
	https://broschuerenservice.nrw.de/default/shop/Klimaschutz_in_Nordrhein-Westfalen/0 STATUS : 302 → Redirecting to : https://broschuerenservice.nrw.de/default/shop/Klimaschutz_in_Nordrhein-Westfalen
	https://broschuerenservice.nrw.de/default/shop/Klimaschutz_in_Nordrhein-Westfalen STATUS : 302 → Redirecting to : https://broschuerenservice.nrw.de/default/shop/erstes-klimaschutzpaket-nordrhein-westfalen
	https://broschuerenservice.nrw.de/default/shop/erstes-klimaschutzpaket-nordrhein-westfalen Illegal character in path at index 57: /default/shop/erstes-klimaschutzpaket-nordrhein-westfalen|2054
	http://d-nb.info/1238730124/34 STATUS : 301 → Redirecting to : https://d-nb.info/1238730124/34
	https://d-nb.info/1238730124/34 STATUS : 404 → Skipping : https://d-nb.info/1238730124/34

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