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:hebis:77-11730
	https://openscience.ub.uni-mainz.de/handle/20.500.12030/4168 STATUS : 404 → Skipping : https://openscience.ub.uni-mainz.de/handle/20.500.12030/4168
	http://d-nb.info/981952259/34 STATUS : 301 → Redirecting to : https://d-nb.info/981952259/34
	https://d-nb.info/981952259/34 STATUS : 404 → Skipping : https://d-nb.info/981952259/34

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