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:101:1-2022012513213743605535
	https://broschuerenservice.mkffi.nrw/mkffi/files?download_page=0&product_id=1866&files=e/8/e86e32bbc6a4937999cd48fe8aff74a6.pdf Illegal character in path at index 62: https://broschuerenservice.mkffi.nrw/mkjfgfi/shop/BroschC3BCre|1866
	http://d-nb.info/1250279798/34 STATUS : 301 → Redirecting to : https://d-nb.info/1250279798/34
	https://d-nb.info/1250279798/34 STATUS : 404 → Skipping : https://d-nb.info/1250279798/34

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